Waves, Light, and Sound
Grade 4 Science Worksheet

Circle the answer.
How do you see a red apple on a table in a lit room?
- light bounces off the apple into your eyes
- your eyes send light out to the apple
- the apple makes its own light
- light goes from your eyes to the lamp
A tsunami wave is only about 1 meter tall at sea but very long. Near shore it grows very tall. What happens to its energy?
- it disappears in the deep ocean
- it turns into light near the shore
- it crowds into a taller wave near shore
- it moves into the sea floor forever
What is the lowest point of a wave called?
- the trough
- the crest
- the amplitude
- the peak
Sam throws a pebble into a pond. Rings of waves spread out. What do the waves carry?
- energy
- the pebble
- sand from the bottom
- all the pond water
A sound gets quieter as you walk away from a speaker. What is happening to the waves that reach you?
- they are turning into light
- they have more energy
- their wavelength disappears
- they have less energy and smaller amplitude


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