Study Guide: Scientific Inquiry Test Zoink Questions

Transcription

1 Study Guide: Scientific Inquiry Test Zoink Questions 1. What instrument measures the mass of a golf ball? 2. What happens to the accuracy of your results when the sample size of an investigation decreases? 3. What following safety rule is being broken? Tommy reached across the flame on the Bunsen burner to get a beaker on the other side of the lab table. 4. The variable that gets changed on purpose in a scientific experiment is? 5. What instrument is used to measure the temperature of a liquid? 6. Identify the following safety rule that is being broken Carrie noticed that her test tube was letting off a gas, so she inhaled the chemical reaction to see what it smelled like. 7. When things are kept the same in an experiment they are called? 8. If Travis drops 1 ball from the top of the football stands 10 times each what is his sample size? Golden 1

2 9. What instrument measures the length of an object? 10. What instrument is used to study DNA strands? 11. What safety rule is being broken? After completing the experiment Julie left all her equipment on her lab table and went to talk to a friend. 12. What is wrong with this experiment? Kevin wants to find out which golf ball goes the farthest. He tests Titleist and Strata golf balls. He uses a swing machine to hit the golf balls. He uses two different clubs a 5-iron and a 5-wood. He determined that Titleist was the best ball to use with a 5-wood and to use Strata golf balls with a 5-iron. 13. What piece of equipment measure density? 14. What piece of equipment is cylindrical shaped and used to measure volume of a liquid? 15. What s wrong in this science classroom? Annie poured two chemicals together because she thought it would be fun to see what happened even though the lab did not instruct her to do that. 16. What s wrong in this science classroom? After Annie mixed the two chemicals the chemicals started to overflow all over her lab table. She cleaned it up without telling the teacher because she knew she would get into trouble. Golden 2

3 17. Lindsay planted two types of grass seed Scott s and Greener Grass. In a 4 inch clay pot, she put in a cup of miracle grow in the bottom then placed 20 Scott s grass seeds on top of it. Next she placed ¼ cup of Miracle grow soil on top of the Scott s grass seeds. Then she repeated the same process in a new 4 inch clay pot but with 20 Greener Grass seeds. She then places them next together on her screened in front porch. Everyday at 8:00 AM and 8:00 PM she waters each pot with 1 tablespoon of water from her faucet. Then at 8:10 PM she measures with a ruler the tallest grass blade in each clay pot and records the result. What is the independent variable? What is the dependent variable? What are the controls in this experiment? What is the sample size? 18. The teacher lays out safety goggles for the students to wear for their lab. Roger sees the goggles on the lab table but the directions in the lab did not say to put on the goggles. He looks around and the teacher has his goggles on along with most of the students. The lab requires mixing chemicals that can irritate the eyes and nose. What do you think Roger should do follow the lab instructions and not put on the goggles or the general lab rules and put on the safety goggles? Why? Golden 3

4 19. On September 03, 2011 four scientists came together and asked themselves whether or not adding mass would increase or decrease the distance traveled by a straw rocket. After thinking about the problem they formulated a hypothesis and then designed an experiment. The scientists decided that they would gradually add mass to 5 straw rockets and record the results. They decided to make sure that each rocket was identical and would have only 3 fins. The scientists also decided to launch the rockets inside a controlled environment as to prevent any changes in wind direction or strength. They used the Super Duper Big Bad Mamma Jamma rocket launcher to launch all of the rockets. Below is the data they collected for the experiment. Rocket Mass Trial 1 (m) Trial 2 (m) Trial 3 (m) Trial 4 (m) Trial 5 (m) 2 g g g g g A. What is the INDEPENDENT VARIABLE? B. What is the DEPENDENT VARIABLE? C. What is the SAMPLE SIZE? D. What SI unit of distance did the scientists use? E. What SI unit of mass did the scientists use? List 3 controls used in the experiment. F. G. H. Golden 4

5 20. Seven people were asked how many miles they lived from work. The responses were 15, 7, 14, 21, 5, 9 and 13. SHOW YOUR WORK Find the following: a) Mean b) Median c) Mode 21. A list of five test scores were 60, 67, 73, 63 and 67. SHOW YOUR WORK Find the following: a) Mean b) Median c) Mode Golden 5

6 22. Directions: Number the steps in order (1-8) of the scientific method. Draw a Conclusion Observations Data Collection Hypothesis Procedure/Methods Develop a Question Analyze Data Research CONCLUSIONS: Sentence 1: Restate the / Sentence 2: Rewrite your Sentence 3 +: Summarize Next Sentence: tell if your was or based on (yours or team) data Last Sentence : Write a / sentence and discuss any for your lab group Golden 6