Unit 27 Vocabulary

What you see when light bounces off different objects...

• Sound

• Energy

• color

​ (a)   is the power to do work.

• Energy
• sound wave
• sound

​ ​ (a)   is making strong, noisy sound.

• Loud
• energy
• sound wave

Match the following.

• Bright

• Giving off strong, shining light.

• Sound wave

• An invisible wave caused by vibrations that move sound.

• Vibration

• A fast movement that goes back and forth.

A repeating sound you hear that is made by sound waves bouncing off an object.

• Sound wave

• Echo

• loud

​ (a)   is a type of energy that lets us hear.

• Sound
• Loud
• Pizza

An invisible wave that moves light.

• Light wave

• Energy

• Echo

A type of energy that lets us see.

• Loud

• Echo

• Light

Match the following.

• Vibration

• A fast movement that goes back and forth.

• Sound wave

• An invisible wave caused by vibrations that move sound.

• Energy

• The power to do work.

Whose birthday is today?

• Mrs. Mary

• Vylet

• Ashlee

• Dr. Seuss