2 nd Grade Science Unit A: Physical Sciences Chapter 1: Forces and Motion Lesson 1: How can you describe position?

object

An object is anything that can be seen.

An object can be placed in any position. What do you think this word means? What context clues can you find?

in front of

In front of means the part of side of anything that faces forward.

The family is in front of their home. What do you think in front of means? What context clues can you find?

behind

Behind is at or toward the rear of.

The pig is behind the fence. What do you think behind means? What context clues can you find?

position

Position is a place or location.

The position of the object is from left to right. What do you think position means? At what position is the object located?

Left is located on or near the side of a person. It is the opposite of right.

People need to make a left when they see this traffic sign. What do you think this word means? What context clues did you find?

Right is located on or near the side of a person. It is the opposite of left.

The arrow is pointing to the right hand side. What do you think this word means? What context clues did you find?

2 nd Grade Science Unit A: Physical Sciences Chapter 1: Forces and Motion Lesson 2: What is motion?

motion

Motion is the act of moving.

The motion of the car is fast. What does the word motion means? What context clues did you find?

Force is a push or a pull that makes something move.

The force of the hurricane is changing. What do you think this word means? How can you use force?

Push is to press upon or against a thing with force in order to move it away.

The lady is going to push away from the object. What do you think the word push means? What context clues did you find?

Pull is to draw or tug toward oneself or itself.

The little boy is pulling the rope. What do you think the word pull means? What context clues did you find?

Heavy is of great weight.

The yellow tractor is heavy. What do you think the word heavy means? What things can a heavy tractor carry?

2 nd Grade Science Unit A: Physical Sciences Chapter 1: Forces and Motion Lesson 3: What is friction?

friction

Friction is a force that makes a moving object slow down or stop moving.

The snow is causing some friction for the polar bear. What does the word friction means? What is the polar bear doing?

smooth

Smooth is not rough.

The two turtle shells are smooth and shiny. What do you think this word means? What context clues did you find?

motion

Motion is the act of moving.

The driver needs to slow down the motion of the car. What do you think this word means? What other kinds of transportation show motion?

Force is a push or a pull that makes something move.

The hurricane is moving in full force. What do you think this word means? How can something show force?

2 nd Grade Science Unit A: Physical Sciences Chapter 1: Forces and Motion Lesson 4: How can tools and machines make things move?

A tool is a thing that can be held in the hand, as a hammer, saw, or file.

Tools are being used everyday by construction workers. What do you think this word means? What context clues did you find?

machine

A machine is a thing used in the performance of some kind of work.

Tools and machines help us do things we can not do alone. What do you think this word means? How can people use machines?

2 nd Grade Science Unit A: Physical Sciences Chapter 1: Forces and Motion Lesson 5: What is gravity?

gravity

Gravity is a force that pulls things toward the center of Earth.

The colorful balls are on the floor because of gravity. What do you think this word means? What context clues did you find?

strong

Strong is having, showing, or able to show great power.

The soccer players are strong while playing this game. What do you think this word means? What other ways can players show that they are strong?

2 nd Grade Science Unit A: Physical Sciences Chapter 1: Forces and Motion Lesson 6: What are magnets?

attract

Attract is to pull toward.

The magnet attracts the nails. What do you think this word means? What other metal objects do you think magnets attract?

Repel is to push away.

The two magnets repel each other because they both the same poles. What do you think this word means? What causes one magnet to repel another magnet?

Move is to pass from one place or position to another.

The magnet moves tiny pieces of metal. What do you think this word means? What context clues did you find?

2 nd Grade Science Unit A: Physical Sciences Chapter 2: Sound Lesson 1: What is sound?

vibrate

Vibrate is to move quickly back and forth.

The little boy can hear the sound when the can vibrates. What do you think this word means? What context clues did you find?

Sound is made when an object vibrates.

You can hear all kinds of sounds. What do you think this word means? What other sounds can you hear?

instrument

An instrument is a tool used for producing musical sounds.

This strings on this instrument will make sounds. What do you think this word means? What other instruments make sounds?

Soft is the volume of sound.

The kitten makes soft sounds while it purrs. What do you think this word means? How can you make a soft sound?

Loud is the. volume of sound.

Fireworks make loud sounds. What do you think this word means? What things or animals make loud sounds?

2 nd Grade Science Unit A: Physical Sciences Chapter 2: Sound Lesson 2: What is volume?

volume

Volume is how loud or soft a sound is.

I need to turn on the volume. What do you think this word means? How can you turn on the volume?

2 nd Grade Science Unit A: Physical Sciences Chapter 2: Sound Lesson 3: What is pitch?

Pitch is how high or low a sound is.

Drums can make a loud pitch. What do you think this word means? By looking at the picture of the drums, how can you make low pitch?

High are objects that vibrate quickly.

The high pitch of the instrument made the girl cover up her ears. What do you think this word means? What context clues did you find?

Low are objects that vibrate slowly.

During workshop, we need to keep a low noise level. What does the word low means? What context clues did you find?