DETERMINING WHICH COLOR UV BEAD CHANGES COLORS THE FASTEST

Size: px
Start display at page:

Download "DETERMINING WHICH COLOR UV BEAD CHANGES COLORS THE FASTEST"

Transcription

1 DETERMINING WHICH COLOR UV BEAD CHANGES COLORS THE FASTEST Helen C Cary Academy ABSTRACT The purpose of this experiment was to determine which color UV bead changes colors the fastest. The bead colors blue, purple, yellow, orange, green, and red were tested. It was hypothesized that the blue bead would change colors the fastest because the darker the color is, the more light it absorbs. The process followed to perform this experiment was first to take one specific color UV bead and shining the UV light over the bead. Next, the stopwatch was started when the UV light was turned on and when the UV bead stopped getting any bolder, the stopwatch was stopped. The data as recoded and there were 2 more trials for every color and this process was repeated for each color. The averages of the three trials were recorded for each color. At the end of the experiment, the purple bead ended up changing colors the fastest. Its 3 trials were 15.15, 16.58, and seconds. The blue bead s 3 trials were 27.88, 29.15, and seconds. The yellow bead s 3 trials were 30.95, 23.01, and seconds and the orange bead s 3 trials were 42.35, 44.27, and seconds. Lastly, the green bead s 3 trials were 36.90, 35.20, and seconds and the red bead s 3 trials were38.79, 37.10, and seconds. The purple bead was first, the yellow bead was second, the blue bead was third, the green bead was fourth, the red bead was fifth, and the orange bead was last. INTRODUCTION The purpose of this experiment was to find out if color affects how fast a UV bead changes colors. The different colors of UV beads that were tested are yellow, orange, purple, blue, red, and green. The orange bead weighed the lightest at 0.21 grams. The purple bead weighed the next lightest at 0.22 grams. The blue, yellow and red beads weighed the second heaviest at 0.23 grams and

2 finally, the green bead weighed the most at 0.2 grams. The hole on every single bead had a diameter of 0.5 cm and all beads had a diameter of 0.8 cm. On all colors on beads, they were smooth, cold, and mainly white. The beads also had a light tint of color which was the pastel version of the color the beads natural color. The actual UV light source was quite heavy weighing at 645 grams. It had a black cover and the light bulb in it was solid black. When the UV light was turned on, it was a dark violet. The UV light rays were invisible and made the object getting shined on indigo. When bare skin is placed under the UV light, the skin reacted to the light and started warming up. Light is just a type of energy that travels through waves. These waves are different than sound waves or water waves found at the beach. A special type of light that is produced by certain sources of light is called UV light or ultraviolet light. This is an example of light produced by electromagnetic waves which are produced by the sun. This UV light has enough power to hurt or help a person. When too much UV light is absorbed, it can cause sunburns which can eventually lead to skin cancer, wrinkles, and a lot of pain. On the other hand, UV light is so strong, that it can even kill bacteria on foods and sometimes even surgical tools. Also, when exposed to UV light, skin cells produce lots of vitamin D. This specific vitamin allows intestines to absorb calcium which is then used to help make bones and teeth grow to be very strong. The way a UV bead works is because it has a UV active pigment which absorbs UV light. The bead is not actually white although it looks white. When exposed to sunlight or UV light, they reveal their true colors. UV light is invisible to the naked eye which is why the UV rays are not seen. Each bead will change color about 50,000 times before the pigment will no longer respond to UV light. When bare skin is exposed to sunlight, the skin will either burn or tan. UV radiation wavelengths are short enough to break chemical bonds in someone s skin tissue and with over prolonged exposure, the skin may wrinkle or skin cancer may appear. These responses by a person s skin are a signal that the cells under the skin are being assaulted by UV radiation. There are 3 types of ultraviolet light. There is UVA which can cause premature aging of the skin and skin cancer. Tanning beds are an example of a strong source of UVA radiation. The second type of ultraviolet light is UVB which can mainly affect the epidermis. This radiation can cause

3 sunburns, premature aging of the skin and at higher levels, skin cancer. The final type of ultraviolet light is the strongest and definitely most dangerous. It is known as UVC. Fortunately, these rays are stopped by the Earth s atmosphere and do not reach the Earth s surface. When an object appears a certain color when illuminated by white light it means that it is reflecting light of that color and absorbing all other colors. For example, a red apple is reflecting red light and absorbing all other colors of light. The more light the object absorbs, the more heat absorbed since light is energy. If it is considered as a color, black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none. Objects that are white, on the other hand, reflect all wavelengths of light and therefore absorb the least heat. It was hypothesized that the blue bead will change colors the fastest because darker colors absorb more light. The blue bead is the darkest color when light is exposed and when light is not exposed. MATERIALS AND METHOD Different color UV beads (blue, orange, red, yellow, green, and purple) Stopwatch UV light source Flat and open surface First, a color UV bead was chosen out of the container. Next, the UV light was above the bead. When the UV light was turned on and shined over the bead, the stopwatch was started. When the bead stopped changing any darker, the stopwatch was stopped. The data was recorded and this process was repeated 2 more times. The averages were calculated and this process was repeated for each color. The control of this experiment was the bead when not exposed to UV light, the independent variable was the color of the bead and the dependent variable was which color bead changed the fastest when exposed to UV light. The three controlled variables were the same brand of beads, same temperature of the room, and same UV light source.

4 Average Time (s) RESULTS AND DISCUSSION The purple bead ended up changing colors the fastest with an average of seconds. The yellow bead came in second place with an average of seconds and the blue bead came in third with an average of seconds. Green was the next fastest with an average of seconds, and the red bead came in second to last with an average of seconds. Lastly, the orange bead came in last place with an average of seconds. When the experiment was being performed, it was observed that the top of the bead seemed to change faster than the bottom of the bead. The top would be a solid color after 10 seconds but the bottom after 10 seconds but the bottom gradually changed color and took around 30 seconds. The area around the bead also seemed to react to the light by getting warmer Blue Red Orange Yellow Green Purple Color Of UV Bead Figure 1: Average Time of Color Changes for each Bead The purple bead ended up changing colors the fastest with an average of seconds. The yellow bead came in second place with an average of seconds and the blue bead came in third with an average of seconds. Green was the next fastest with an average of seconds, and the red bead came in second to last with an average of seconds. Lastly, the orange bead came in last place with an average of seconds.

5 When the experiment was being performed, it was observed that the top of the bead seemed to change faster than the bottom of the bead. The top would be a solid color after 10 seconds but the bottom after 10 seconds but the bottom gradually changed color and took around 30 seconds. The area around the bead also seemed to react to the light by getting warmer. CONCLUSIONS The hypothesis was not confirmed to be right. It turns out that the purple changed colors the fastest with an average time of seconds where the blue bead s average was seconds. It was inferred that this happened because once the beads were exposed to UV light, the purple bead was the darkest in color and the darker the color is, the faster that color absorbs light. There are a couple ways that this experiment could have been improved. When the UV light was placed above the UV bead, there should have been a specific height that the UV light should have been placed at. Also, when the UV light was turned on, the stopwatch wasn t started at the same time so if this experiment was performed again, there should be one person starting the stopwatch and one person turning on the UV light. These 2 improvements would help make the experiment s data a little more accurate. There are a few other experiments that could be done in this same field of study. The first experiment would include making the beads different temperatures and seeing if this would affect the time it took for the UV bead to change colors when exposed to UV rays. The second experiment that could be performed in this same field would be dipping the UV beads in different liquids and determining if the UV rays would penetrate through the liquid. The third experiment that could be done in this field would be testing the strength of certain brands of sunscreen by seeing which one blocks the UV rays from the UV bead which also means that the bead would stay white. REFERENCES Holt Science and Technology. Sound and Light. Austin: Holt, Rinehart and Winston, Print.

6 Leeds, Grenville, and Lenard's District Health Unit. "Sun Safety- Understanding UV Radiation and the UV Index". Leeds, Grenville and Lenard's District Health Unit. Leeds, Grenville, and Lenard's District Health Unit Web. 22 January Steve Spangler Science. "Color Changing UV Beads". Steve Spangler Science. Steve Spangler Science Web. 22 January 2014.

TO INVESTIGATE THE PROTECTION OF SUNCREAMS AGAINST UV RAYS

TO INVESTIGATE THE PROTECTION OF SUNCREAMS AGAINST UV RAYS TO INVESTIGATE THE PROTECTION OF SUNCREAMS AGAINST UV RAYS Aim: Our aim for this project is to collect data on the effectiveness of different sunscreens against UVA and UVB light, a) In natural sunlight

More information

SKIN CANCER AND TANNING 101. Introduction. There are more than one hundred types of cancer. All the kinds of cancer begin in our cells.

SKIN CANCER AND TANNING 101. Introduction. There are more than one hundred types of cancer. All the kinds of cancer begin in our cells. Introduction There are more than one hundred types of cancer. All the kinds of cancer begin in our cells. Normal cells grow and multiply and then die. Cancer cells grow and multiply and keep growing and

More information

6 th Grade UV. Friend or Foe. The student will understand where ultraviolet light (UV) fits in the spectrum of light and its affects on all life.

6 th Grade UV. Friend or Foe. The student will understand where ultraviolet light (UV) fits in the spectrum of light and its affects on all life. 6 th Grade UV Friend or Foe LEARNING OBJECTIVES The student will understand where ultraviolet light (UV) fits in the spectrum of light and its affects on all life. STUDENT PERFORMANCE OBJECTIVES?? The

More information

Section 1 Electromagnetic Waves

Section 1 Electromagnetic Waves Section 1 Electromagnetic Waves What are electromagnetic waves? What do microwaves, cell phones, police radar, television, and X-rays have in common? All of them use electromagnetic waves Electromagnetic

More information

Tech Bulletin. Understanding Solar Performance

Tech Bulletin. Understanding Solar Performance Tech Bulletin Understanding Solar Performance Bekaert solar control window films use advanced technology to benefit consumers with quality solutions that enhance comfort and decrease energy use. By understanding

More information

What is Solar Control?

What is Solar Control? A better environment inside and out. Solar, Safety and Security Window Films: Tech Bulletin Understanding Solar Performance Solar Gard solar control window films use advanced technology to benefit consumers

More information

Sunshine on My Shoulders

Sunshine on My Shoulders Sunshine on My Shoulders Description Learners conduct simple experiments to find out what makes mystery beads change color outdoors. They discover that invisible rays of UV (ultraviolet) light cause the

More information

Narrowband Ultraviolet Radiation (UVB) (phototherapy)

Narrowband Ultraviolet Radiation (UVB) (phototherapy) Narrowband Ultraviolet Radiation (UVB) (phototherapy) Therapy Services Physiotherapy Department 01625 661481 Leaflet Ref: 11195 Published: 06/15 Review: 06/18 Page 1 Introduction Your doctor or consultant

More information

Review Vocabulary spectrum: a range of values or properties

Review Vocabulary spectrum: a range of values or properties Standards 7.3.19: Explain that human eyes respond to a narrow range of wavelengths of the electromagnetic spectrum. 7.3.20: Describe that something can be seen when light waves emitted or reflected by

More information

Ultraviolet Sensor DATA HARVEST. (Product No. 3277) EFR-105

Ultraviolet Sensor DATA HARVEST. (Product No. 3277) EFR-105 (Product No. 3277) EFR-105 Slow response ranges: 1. 500 mw/m 2 Resolution:

More information

SunWise. a program that radiates good ideas. SunWise. U.S. Environmental Protection Agency 3-5

SunWise. a program that radiates good ideas.  SunWise. U.S. Environmental Protection Agency 3-5 a program that radiates good ideas www.epa.gov/sunwise U.S. Environmental Protection Agency 1 Be 2 What do you know about the Sun? 3 Helpful and Harmful Effects of the Sun Helpful Keeps Us Warm Helps Plants

More information

Light and Other Radiations

Light and Other Radiations Light and Other Radiations Visible light is a form of electromagnetic radiation. X-rays, infrared, microwaves and gamma rays are other forms of this type of radiation which make up the electromagnetic

More information

The Electromagnetic Spectrum

The Electromagnetic Spectrum The Electromagnetic Spectrum 1 Look around you. What do you see? You might say "people, desks, and papers." What you really see is light bouncing off people, desks, and papers. You can only see objects

More information

2.5: Energy Flow in Ecosystems pg. 38. Radiant Energy: energy that travels through empty space.

2.5: Energy Flow in Ecosystems pg. 38. Radiant Energy: energy that travels through empty space. 2.5: Energy Flow in Ecosystems pg. 38 Radiant Energy: energy that travels through empty space. Producer: an organism that makes its own energy-rich food using the Sun s energy. Photosynthesis: the process

More information

Treating your skin condition with narrowband ultraviolet B radiation (NB-UVB)

Treating your skin condition with narrowband ultraviolet B radiation (NB-UVB) Treating your skin condition with narrowband ultraviolet B radiation (NB-UVB) Your doctor has referred you to the Dowling Day Treatment Centre for a course of narrow band ultraviolet treatment for your

More information

Solar Matters II Teacher Page

Solar Matters II Teacher Page Solar Matters II Teacher Page UV Beads With Sunscreen Student Objective will be able to explain the importance of using sunscreen will be able to explain how the amount of UV radiation varies in differing

More information

Vantage Pro2, Vantage VUE, Vantage Pro, and Health EnviroMonitor Systems

Vantage Pro2, Vantage VUE, Vantage Pro, and Health EnviroMonitor Systems INTERPRETING UV READINGS Application Note 6 Vantage Pro2, Vantage VUE, Vantage Pro, and Health EnviroMonitor Systems Introduction Ultraviolet (UV) radiation can cause health damage in many ways: to the

More information

Related KidsHealth Links

Related KidsHealth Links Grades 6 to 8 Health Problems Series KidsHealth.org/classroom Teacher s Guide This guide includes: Standards Related Links Discussion Questions Activities for Students Reproducible Materials Standards

More information

3-1. True or False: Different colors of light are waves with different amplitudes. a.) True b.) False X

3-1. True or False: Different colors of light are waves with different amplitudes. a.) True b.) False X 3-1. True or False: Different colors of light are waves with different amplitudes. a.) True b.) False X 3-2. True or False: Different colors of light are waves with different wavelengths. a.) True X b.)

More information

Measuring Light Transmittance and UVA and UVB of Transparent Materials using the PerkinElmer LAMBDA 35

Measuring Light Transmittance and UVA and UVB of Transparent Materials using the PerkinElmer LAMBDA 35 APPLICATION NOTE UV/Vis/NIR Spectroscopy Author: Frank Padera PerkinElmer, Inc. Shelton, CT USA Measuring Light Transmittance and UVA and UVB of Transparent Materials using the PerkinElmer LAMBDA 35 Ultraviolet

More information

Photosynthesis and Light in the Ocean Adapted from The Fluid Earth / Living Ocean Heather Spalding, UH GK-12 program

Photosynthesis and Light in the Ocean Adapted from The Fluid Earth / Living Ocean Heather Spalding, UH GK-12 program Photosynthesis and Light in the Ocean Adapted from The Fluid Earth / Living Ocean Heather Spalding, UH GK-12 program Algae, like your Halimeda, and plants live in very different environments, but they

More information

MAKING SENSE OF ENERGY Electromagnetic Waves

MAKING SENSE OF ENERGY Electromagnetic Waves Adapted from State of Delaware TOE Unit MAKING SENSE OF ENERGY Electromagnetic Waves GOALS: In this Part of the unit you will Learn about electromagnetic waves, how they are grouped, and how each group

More information

Exploring Ultraviolet (UV) light from the Sun

Exploring Ultraviolet (UV) light from the Sun http://sunearthday.nasa.gov Public Outreach - Make and Take Activities What You ll Need UV detectors a.k.a. UV beads. These can be ordered inexpensively from http://www.teachersource.com container or covering

More information

TESTING EGGS THAT ARE SOAKED IN DIFFERENT TYPES OF LIQUIDS

TESTING EGGS THAT ARE SOAKED IN DIFFERENT TYPES OF LIQUIDS TESTING EGGS THAT ARE SOAKED IN DIFFERENT TYPES OF LIQUIDS Matthew Cinoman Cary academy ABSTRACT The primary purpose of this experiment was to see how different liquids would affect the egg shells the

More information

Focused Learning Lesson Physical Science Grade Levels 9 12 PS-H-G4

Focused Learning Lesson Physical Science Grade Levels 9 12 PS-H-G4 Focused Learning Lesson Physical Science Grade Levels 9 12 PS-H-G4 Overview: This lesson provides students the opportunity to study positive and negative aspects of various types of energy through critical

More information

Electromagnetic Spectrum

Electromagnetic Spectrum Electromagnetic Spectrum Why do some things have colors? What makes color? Why do fast food restaurants use red lights to keep food warm? Why don t they use green or blue light? Why do X-rays pass through

More information

Sap Steady UV Unit for Maple Sap

Sap Steady UV Unit for Maple Sap Cornell Maple Bulletin 203 (2007) Sap Steady UV Unit for Maple Sap by BRIAN CHABOT Overview Components The Sap-Steady unit from FPE Inc. (Macedon NY) has been designed to kill bacteria yeast, and some

More information

Human Biology Book Ch. 3.3

Human Biology Book Ch. 3.3 Human Biology Book Ch. 3.3 Skin performs important functions. Just as an apple's skin protects the fruit inside, your skin protects the rest of your body. Made up of flat sheets of cells, your skin protects

More information

The Greenhouse Effect

The Greenhouse Effect The Greenhouse Effect THE GREENHOUSE EFFECT To understand the greenhouse effect you first need to know a bit about solar radiation what it is, where it comes from and what happens when it reaches Earth.

More information

Properties of Light By Cindy Grigg

Properties of Light By Cindy Grigg Properties of Light By Cindy Grigg 1 Light is one form of energy that travels in electromagnetic waves. This energy is both magnetic and electrical. 2 There are many different types of electromagnetic

More information

Protect Your Skin in the Sun

Protect Your Skin in the Sun Little Things. Big Difference. An Independent Licensee of the Blue Cross and Blue Shield Association. Monthly Health Challenge Protect Your Skin in the Sun CHALLEngE Protect your skin from too much sun

More information

Energy Transfer in the Atmosphere

Energy Transfer in the Atmosphere Energy Transfer in the Atmosphere Essential Questions How does energy transfer from the sun to Earth and the atmosphere? How are air circulation patterns with the atmosphere created? Vocabulary Radiation:

More information

GCSE. Core Gateway Science B P1: Energy from the Home. We are what we repeatedly do. Excellence, therefore, is not an act but a habit

GCSE. Core Gateway Science B P1: Energy from the Home. We are what we repeatedly do. Excellence, therefore, is not an act but a habit GCSE Core Gateway Science B P1: Energy from the Home We are what we repeatedly do. Excellence, therefore, is not an act but a habit Unit Page Completed By 1a Heating Houses 80 1b Keeping Homes Warm 83

More information

Light, Light Bulbs and the Electromagnetic Spectrum

Light, Light Bulbs and the Electromagnetic Spectrum Light, Light Bulbs and the Electromagnetic Spectrum Spectrum The different wavelengths of electromagnetic waves present in visible light correspond to what we see as different colours. Electromagnetic

More information

The Wave Model of Light

The Wave Model of Light Light is part of the electromagnetic spectrum and travels in waves. Student Name Class The Wave Model of Light 1. A.crest B.rest position C.amplitude D.wavelength The arrows a) and b) -identified in the

More information

Infrared Thermometer Guidance

Infrared Thermometer Guidance Infrared Thermometer Guidance Infrared thermometers can be used to answer a range of questions, including: - What is the temperature of the clouds? - What is the greenhouse effect? - If it is sunny, how

More information

After a wave passes through a medium, how does the position of that medium compare to its original position?

After a wave passes through a medium, how does the position of that medium compare to its original position? Light Waves Test Question Bank Standard/Advanced Name: Question 1 (1 point) The electromagnetic waves with the highest frequencies are called A. radio waves. B. gamma rays. C. X-rays. D. visible light.

More information

May Is National Melanoma/Skin Cancer Detection and Prevention Month

May Is National Melanoma/Skin Cancer Detection and Prevention Month May Is National Melanoma/Skin Cancer Detection and Prevention Month What is Melanoma? Melanoma is a type of skin cancer. It begins in the cells of the skin called melanocytes. To understand melanoma, it

More information

8.2 Cells and Energy. What is photosynthesis? Photosynthesis takes place in the chloroplasts. CHAPTER 8. Solar cells and chloroplasts

8.2 Cells and Energy. What is photosynthesis? Photosynthesis takes place in the chloroplasts. CHAPTER 8. Solar cells and chloroplasts CHAPTER 8 CELL PROCESSES 8.2 Cells and Energy To stay alive, you need a constant supply of energy. You need energy to move, think, grow, and even sleep. Where does that energy come from? It all starts

More information

TESTING THE STRENGTH OF DIFFERENT MAGNETS. Anthony Guzzo. Cary Academy ABSTRACT

TESTING THE STRENGTH OF DIFFERENT MAGNETS. Anthony Guzzo. Cary Academy ABSTRACT TESTING THE STRENGTH OF DIFFERENT MAGNETS Anthony Guzzo Cary Academy ABSTRACT The purpose of the experiment was to determine the strongest type of magnet. The three types of magnets that were being tested

More information

THE EFFECT OF COLOUR FILTERS ON SOLAR PANELS. Katie Fitzgerald Expo Project Grade 7

THE EFFECT OF COLOUR FILTERS ON SOLAR PANELS. Katie Fitzgerald Expo Project Grade 7 THE EFFECT OF COLOUR FILTERS ON SOLAR PANELS Katie Fitzgerald Expo Project Grade 7 OBSERVATION By using a solar light instead of electricity, one can assist in lightening the load on our environment. By

More information

TANNING: FREQUENTLY ASKED QUESTIONS

TANNING: FREQUENTLY ASKED QUESTIONS TANNING: FREQUENTLY ASKED QUESTIONS General Statistics: An estimated 30 million North Americans 65% to 70% of them women turned to tanning salons in 2006 as a controlled alternative to outdoor tanning.

More information

As the Sun Burns. Supplemental science materials. for grades 2-4

As the Sun Burns. Supplemental science materials. for grades 2-4 As the Sun Burns Supplemental science materials for grades 2-4 These supplemental curriculum materials are sponsored by the Standford SOLAR (Solar On-Line Activity Resources) Center. In conjunction with

More information

Ultraviolet (UV) Radiation Safety

Ultraviolet (UV) Radiation Safety Ultraviolet (UV) Radiation Safety April 2005 Compiled by Myung Chul Jo Environmental Health and Safety University of Nevada Reno Page 1 of 8 Table of Contents 1. UVRadiation 3 2. Common sources of UV radiation

More information

UV Analysis of Sunscreens

UV Analysis of Sunscreens UV Analysis of Sunscreens Texas A&M University Organic Lab 238 The Electromagnetic Spectrum The UV region is the range of frequencies just higher than those for visible light UV-Vis energies correspond

More information

Grade 8 Science Chapter 4 Notes

Grade 8 Science Chapter 4 Notes Grade 8 Science Chapter 4 Notes Optics the science that deals with the properties of light. Light a form of energy that can be detected by the human eye. The History of Optics (3 Scientists): 1. Pythagoras

More information

UV Light and Sunscreens. Evaluation copy. Figure 1

UV Light and Sunscreens. Evaluation copy. Figure 1 UV Light and Sunscreens Experiment 17 Sunscreens are available in many different types and with many different levels of protection. The most common measure of protection from UVB light is the SPF factor.

More information

Name Class Date. Summarize the events of DNA replication. Compare DNA replication in prokaryotes with that of eukaryotes.

Name Class Date. Summarize the events of DNA replication. Compare DNA replication in prokaryotes with that of eukaryotes. 12.3 DNA Replication Lesson Objectives Summarize the events of DNA replication. Compare DNA replication in prokaryotes with that of eukaryotes. Lesson Summary Copying the Code Each strand of the double

More information

WATER ROCKET AND DRY ICE SUBLIMATION Rachel May Cary Academy

WATER ROCKET AND DRY ICE SUBLIMATION Rachel May Cary Academy WATER ROCKET AND DRY ICE SUBLIMATION Rachel May Cary Academy ABSTRACT This experiment was conducted to determine how much dry ice will be able to sublimate in the time that it takes a water rocket to launch,

More information

about Why You Should Know Melanoma

about Why You Should Know Melanoma about Why You Should Know Melanoma Why You Should Know about Melanoma Each year, more than 3 million Americans are diagnosed with skin cancer. This is the most common form of cancer. Of these, more than

More information

Sun Care Advice in Pharmacy

Sun Care Advice in Pharmacy PHARMACY EDUCATION MODULE - SUN CARE Sun Care Advice in Pharmacy Welcome to the Sun Care pharmacy training module from Boston Healthcare Limited. This sun care section will provide you with useful information

More information

Common Defects in Digital Printing. Paul Geldenhuys & Amir Shapira January, 2009

Common Defects in Digital Printing. Paul Geldenhuys & Amir Shapira January, 2009 Common Defects in Digital Printing Paul Geldenhuys & Amir Shapira January, 2009 Overview Ambient Influences Humidity Temperature Sunlight & UV Abrasion Chemical Resistance Common Defects in Digital Printing

More information

Rigorous Curriculum Design Unit Planning Organizer

Rigorous Curriculum Design Unit Planning Organizer 1 Rigorous Curriculum Design Unit Planning Organizer Subject(s) Science Grade/Course 6 Unit of Study Forces and Motion Pacing Minimum 15 days, Maximum 20 days Priority Essential Standards 6.P.1 Understand

More information

Heat transfer: Radiation

Heat transfer: Radiation Heat transfer: Radiation Name: RECAP: Conduction and Convection are two ways heat energy can be transferred. Conduction requires that two substances be in direct contact with each other in order for heat

More information

INTEGRATED SCIENCE 1: UNIT 4: PHYSICS

INTEGRATED SCIENCE 1: UNIT 4: PHYSICS INTEGRATED SCIENCE 1: UNIT 4: PHYSICS Sub Unit 1: Waves TEST 2: Electromagnetic Waves Form A MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1)Electromagnetic

More information

Materials Needed: Time Needed: Adaptations: 2 flyswatters (optional) Vocabulary Definitions (below) Vocabulary Scramble Sheets (below)

Materials Needed: Time Needed: Adaptations: 2 flyswatters (optional) Vocabulary Definitions (below) Vocabulary Scramble Sheets (below) Vocabulary Slap Game ( Flyswatter Game ) Directions: Project a Vocabulary Scramble sheet on a projection screen or Smart Board. Divide the class into two teams. Each team sends one person up to the screen.

More information

THE STUDY OF HOW MUCH LIGHT IS REFLECTED OFF OF EVERYDAY HOUSEHOLD OBJECTS

THE STUDY OF HOW MUCH LIGHT IS REFLECTED OFF OF EVERYDAY HOUSEHOLD OBJECTS THE STUDY OF HOW MUCH LIGHT IS REFLECTED OFF OF EVERYDAY HOUSEHOLD OBJECTS Joshua Pullen Cary Academy ABSTRACT The purpose of these experiments was to discover what materials reflected the most light and

More information

The Truth About Tanning: What You Need to Know to Protect Your Skin Lesson Plan for Grades Adaptable for Grades 6-9

The Truth About Tanning: What You Need to Know to Protect Your Skin Lesson Plan for Grades Adaptable for Grades 6-9 The Truth About Tanning: What You Need to Know to Protect Your Skin Lesson Plan for Grades 10-12 Adaptable for Grades 6-9 Note: This lesson plan is intended to be used as a guide in planning a classroom

More information

Determining How Long It Takes To Melt Different Types of Liquids

Determining How Long It Takes To Melt Different Types of Liquids Determining How Long It Takes To Melt Different Types of Liquids Isabella B Cary Academy ABSTRACT The purpose of the experiment was to see which kind of frozen liquid takes the shortest amount of time

More information

Spectra in the Lab ATOMS AND PHOTONS

Spectra in the Lab ATOMS AND PHOTONS Spectra in the Lab Every chemical element has a unique ``signature'' which can be revealed by analyzing the light it gives off. This is done by spreading the light out into a rainbow of color. It may seem

More information

WHITE LIGHT AND COLORED LIGHT

WHITE LIGHT AND COLORED LIGHT grades K 5 Objective This activity offers two simple ways to demonstrate that white light is made of different colors of light mixed together. The first uses special glasses to reveal the colors that make

More information

Looking at worksheets and activity sheets

Looking at worksheets and activity sheets Looking at worksheets and activity sheets You are provided with seven worksheets, all taken from the TES website where teachers and others can share their resources. What makes a good worksheet? Look at

More information

raan uv systems INFRARED TERM 2000 cabins with Philips VITAE lamps

raan uv systems INFRARED TERM 2000 cabins with Philips VITAE lamps INFRARED TERM 2000 cabins with Philips VITAE lamps Until lately, there were just Infra Red cabins using the medium-wave (IR-B) and long-wave (IR-C) lamps, so-called: not shining or black available in retail.

More information

Recommended Resources: The following resources may be useful in teaching this

Recommended Resources: The following resources may be useful in teaching this Unit C: Plant Physiology Lesson 2: Understanding Light, Temperature, Air, and Water Effects on Plant Growth Student Learning Objectives: Instruction in this lesson should result in students achieving the

More information

The Earth s Atmosphere

The Earth s Atmosphere THE SUN-EARTH SYSTEM III The Earth s Atmosphere Composition and Distribution of the Atmosphere The composition of the atmosphere and the way its gases interact with electromagnetic radiation determine

More information

P1 Learning Outcome Questions

P1 Learning Outcome Questions P1 Learning Outcome Questions Question 1. Do hot things or warm things cool down more quickly? 2. In which direction does heat energy always move? Answer Hot things cool down more quickly From a warmer

More information

COMPARING SUNSCREENS BY ABSORPTION OF UV LIGHT

COMPARING SUNSCREENS BY ABSORPTION OF UV LIGHT COMPARING SUNSCREENS BY ABSORPTION OF UV LIGHT From Science with Handhelds, Vernier Software INTRODUCTION Sunscreens are available in many different types and with many different levels of protection.

More information

The Electromagnetic Spectrum

The Electromagnetic Spectrum The Electromagnetic Spectrum This flipchart has been adapted from original work, distributed by download or viewed on the Internet, as a free GCSE physics teaching resource by Andy Darvill, physics teacher,

More information

Important Notes Color

Important Notes Color Important Notes Color Introduction A definition for color (MPI Glossary) The selective reflection of light waves in the visible spectrum. Materials that show specific absorption of light will appear the

More information

Light. Light. Overview. In-class activity. What are waves? In this section: PSC 203. What is it? Your thoughts?

Light. Light. Overview. In-class activity. What are waves? In this section: PSC 203. What is it? Your thoughts? Light PSC 203 Overview In this section: What is light? What is the EM Spectrum? How is light created? What can we learn from light? In-class activity Discuss your answers in groups of 2 Think of as many

More information

Color Properties of color. Color- an element derived from reflected light. If it were not for light, we would have no color

Color Properties of color. Color- an element derived from reflected light. If it were not for light, we would have no color Most Expressive element of art Is powerful Can show emotion Color Properties of color Color- an element derived from reflected light If it were not for light, we would have no color White light from the

More information

Reading Preview. Key Concepts How are electromagnetic waves alike, and how are they different? What waves make up the electromagnetic spectrum?

Reading Preview. Key Concepts How are electromagnetic waves alike, and how are they different? What waves make up the electromagnetic spectrum? Section 2 Waves of the Electromagnetic Spectrum 2 Waves of the Electromagnetic Spectrum Objectives After this lesson, students will be able to O.3.2.1 Explain how electromagnetic waves are alike and how

More information

Lecture Eight: Energy Flow And Biogeochemical Cycles

Lecture Eight: Energy Flow And Biogeochemical Cycles Lecture Eight: Energy Flow And Biogeochemical Cycles We now know what a FOOD WEB is, and what TROPHIC LEVELS are. The Food Web reflects the flow of ENERGY and NUTRIENTS through ecosystems. ENERGY (E) is

More information

New York State Department of Health. Tanning Facilities Program 2013. Tanning Facilities a public health regulatory program presented by the 9/9/2013

New York State Department of Health. Tanning Facilities Program 2013. Tanning Facilities a public health regulatory program presented by the 9/9/2013 New York State Department of Health Tanning Facilities Program 2013 Tanning Facilities a public health regulatory program presented by the Bureau of Community Environmental Health and Food Protection Empire

More information

Heating the Atmosphere. Dr. Michael J Passow

Heating the Atmosphere. Dr. Michael J Passow Heating the Atmosphere Dr. Michael J Passow Heat vs. Temperature Heat refers to energy transferred from one object to another Temperature measures the average kinetic energy in a substance. When heat energy

More information

Sun safety. Ultraviolet rays. information@lymphomas.org.uk www.lymphomas.org.uk

Sun safety. Ultraviolet rays. information@lymphomas.org.uk www.lymphomas.org.uk Produced 2010 Next revision due 2012 Sun safety If you have been treated with radiotherapy or chemotherapy for Hodgkin lymphoma or non-hodgkin lymphoma you should always be careful in the sun. However,

More information

Chapter 16 Heat Transfer

Chapter 16 Heat Transfer Chapter 16 Heat Transfer Conduction Convection Radiation John Suchocki demonstrates the low conductivity of red-hot coals with his bare feet. 1 Three different ways of heat transmission Heat transfers

More information

Teacher Guide. Including Student Activities. Module 7: Demonstrating Properties of Electromagnetic Radiation

Teacher Guide. Including Student Activities. Module 7: Demonstrating Properties of Electromagnetic Radiation Teacher Guide Including Student Activities Module 7: Demonstrating Properties of Electromagnetic Radiation ACTIVITY GUIDE Module 7: Demonstrating Properties of Electromagnetic Radiation Summary: Electromagnetic

More information

Melanoma/Skin Cancer. What is the Impact on Hoosiers? Table 9. Burden of Melanoma Indiana, Average number of cases per year ( )

Melanoma/Skin Cancer. What is the Impact on Hoosiers? Table 9. Burden of Melanoma Indiana, Average number of cases per year ( ) What is the Impact on Hoosiers? Table 9. Burden of Melanoma Indiana, 2004 2008 Average number of cases per year (2004 2008) Rate per 100,000 people* (2004 2008) Number of cases (2008) Rate per 100,000

More information

February 04, Solar Budget NOTES.notebook. Balancing. Heats. too little. Too much. photosynthesis. weather. light bulb. light bulb.

February 04, Solar Budget NOTES.notebook. Balancing. Heats. too little. Too much. photosynthesis. weather. light bulb. light bulb. Earth s Solar Energy Budget Sun Primary source of Earth s energy our planet Needed for Drives our and Primary Sun source of Earth s energy Heats our planet photosynthesis Needed for wind weather Drives

More information

News. Polaroid Eyewear. Tel: Fax: Webdesign and Engineering by Comartis GmbH

News. Polaroid Eyewear. Tel: Fax: Webdesign and Engineering by Comartis GmbH Polaroid Eyewear News Webdesign and Engineering by Comartis GmbH http://www.polaroideyewear.com/index.htm [11/9/2000 10:19:00 PM] Technology Technology Discover the technology of the Polaroid polarizing

More information

WHY IS THE SKY BLUE? (1 HOUR)

WHY IS THE SKY BLUE? (1 HOUR) WHY IS THE SKY BLUE? (1 HOUR) Addresses NGSS Level of Difficulty: 1 Grade Range: 3-5 (Plus Grade 6 Extensions) OVERVIEW In this activity, students will use a glass jar, water, milk, and a flashlight to

More information

Emission and absorption spectra

Emission and absorption spectra Emission and absorption spectra Emission spectra You have learnt previously about the structure of an atom. The electrons surrounding the atomic nucleus are arranged in a series of levels of increasing

More information

Earth s Atmosphere. Energy Transfer in the Atmosphere. 3. All the energy from the Sun reaches Earth s surface.

Earth s Atmosphere. Energy Transfer in the Atmosphere. 3. All the energy from the Sun reaches Earth s surface. CHAPTER 12 LESSON 2 Earth s Atmosphere Energy Transfer in the Atmosphere Key Concepts How does energy transfer from the Sun to Earth and to the atmosphere? How are air circulation patterns within the atmosphere

More information

Effects of UV Light Exposure on Bacteria Laboratory Written by Michelle Furlong

Effects of UV Light Exposure on Bacteria Laboratory Written by Michelle Furlong Laboratory Written by Michelle Furlong Introduction Mutations are a heritable change in the base sequence of DNA. We learned previously that some mutations can be neutral or beneficial to an organism,

More information

Reduce Your Risk of Skin Cancer

Reduce Your Risk of Skin Cancer Reduce Your Risk of Skin Cancer Reduce Your Risk of Skin Cancer Who s at risk of developing skin cancer? Everyone under the sun! Skin cancer is the most common type of cancer in Canada and whether your

More information

Ultraviolet (UV) Radiation and Cancer Risk

Ultraviolet (UV) Radiation and Cancer Risk Ultraviolet (UV) Radiation and Cancer Risk What is UV radiation? Radiation is the emission (sending out) of energy from any source. There are many types of radiation. Ultraviolet (UV) radiation is a form

More information

FXA 2008. Candidates should be able to :

FXA 2008. Candidates should be able to : ELECTROMAGNETIC WAVES AND THE ELECTROMAGNETIC SPECTRUM 1 Candidates should be able to : State typical values for the wavelengths of the different regions of the electromagnetic spectrum from radio waves

More information

As the Sun Burns. Supplemental science materials. for grades 5-8

As the Sun Burns. Supplemental science materials. for grades 5-8 As the Sun Burns Supplemental science materials for grades 5-8 These supplemental curriculum materials are sponsored by the Standford SOLAR (Solar On-Line Activity Resources) Center. In conjunction with

More information

THE STUDY OF THE EFFECT OF DRY ICE ON THE TEMPERATURE OF WATER

THE STUDY OF THE EFFECT OF DRY ICE ON THE TEMPERATURE OF WATER THE STUDY OF THE EFFECT OF DRY ICE ON THE TEMPERATURE OF WATER Justin Tunley Cary Academy ABSTRACT: The purpose of this study was to find out how much the temperature of water would change over time after

More information

LAFHAB GB2. Change men's colour. Session 4 of 6. Level 2 Barbering. Learner Name Date session started Date session finished

LAFHAB GB2. Change men's colour. Session 4 of 6. Level 2 Barbering. Learner Name Date session started Date session finished GB2 Change men's colour Learner Name Date session started Date session finished Session 4 of 6 Level 2 Barbering GB2.4.1a Colour and Light When looking at an object or at the colour of hair, what you are

More information

Understanding UVA and UVB Rays. Skin Cancer Foundation Journal

Understanding UVA and UVB Rays. Skin Cancer Foundation Journal And into the Shade Sun Safety Tips Elaney Wood Heritage Farmers Market Greene County Tami Olive Thompson NC Agromedicine Institute February 23, 2013 Image courtesy of smarnad/freedigitalphotos.net Understanding

More information

Green Heating. Pupil Research Brief. Teachers Notes. Syllabus Coverage Subject Knowledge and Understanding. Route through the Brief UPIL ESEARCHER

Green Heating. Pupil Research Brief. Teachers Notes. Syllabus Coverage Subject Knowledge and Understanding. Route through the Brief UPIL ESEARCHER R P UPIL ESEARCHER Green Heating I NITIATIVE Pupil Research Brief Teachers Notes Syllabus Coverage Subject Knowledge and Understanding all types of electromagnetic radiation form a continuous spectrum

More information

Energy - Heat, Light, and Sound

Energy - Heat, Light, and Sound Science Benchmark: 06:06 Heat, light, and sound are all forms of energy. Heat can be transferred by radiation, conduction and convection. Visible light can be produced, reflected, refracted, and separated

More information

Legally Tan Skin Cancer, Tanning & the Law Melanoma Research Symposium Saturday, April 26 th, 2013

Legally Tan Skin Cancer, Tanning & the Law Melanoma Research Symposium Saturday, April 26 th, 2013 Legally Tan Skin Cancer, Tanning & the Law Melanoma Research Symposium Saturday, April 26 th, 2013 Shannon C. Trotter, DO, FAOCD Assistant Clinical Professor Division of Dermatology The Ohio State University

More information

The Nature of Light. As a particle

The Nature of Light. As a particle The Nature of Light Light is radiant energy. Travels very fast 300,000 km/sec! Can be described either as a wave or as a particle traveling through space. As a wave A small disturbance in an electric field

More information

Guide to PUVA Therapy

Guide to PUVA Therapy Guide to PUVA Therapy Elisabeth Richard, MD Light Therapy for Skin Disease lightandlaser.com 410-847-3700!1 OVERVIEW PUVA therapy consists of taking a medication called psoralen (pronounced soralen with

More information

Planetary Energy Balance

Planetary Energy Balance Planetary Energy Balance Electromagnetic Spectrum Different types of radiation enter the Earth s atmosphere and they re all a part of the electromagnetic spectrum. One end of the electromagnetic (EM) spectrum

More information

Natural & UV-Free Airbrush Tanning

Natural & UV-Free Airbrush Tanning < Natural & UV-Free Airbrush Tanning As a glow-getter you will be happy to hear you can enhance your skin tone without exposing your skin to the harmful UV rays of the sun or tanning beds. How? By protecting

More information

SAMPLE PAGE. The Sun and the Stars. By: Sue Peterson. Scientists know many things about the Sun. They know

SAMPLE PAGE. The Sun and the Stars. By: Sue Peterson. Scientists know many things about the Sun. They know Page 23 Objective Concepts (gravity, climate, solar system, hydrogen, helium, elements, ultraviolet rays, cluster, galaxy, Milky Way Galaxy); Sight words (surface, core, dangerous, causes, amount, glowing,

More information