Worksheet

Light and Sound

Grade 1 - Science - On Level

NameDate

  1. What evidence shows that the tuning fork is making sound?

    • It casts a shadow.
    • It has a color.
    • It is vibrating.

  2. How could a student stop the ruler edge's sound quickly?

    • Stop its vibration.
    • Move it into light.
    • Measure its length.

  3. Why is a wooden block hard to see in a completely dark room?

    • No light reaches the object and eyes.
    • Sound blocks the object.
    • Eyes close whenever it is dark.

  4. A flashlight shines on wax paper. What passes through?

    • no matter at all
    • some light
    • all sound

  5. Which plan makes the light comparison fair?

    • Test in different rooms.
    • Change the light each time.
    • Use one light and equal pieces.

  6. Which observation links the moving ruler edge to the sound heard?

    • It casts a shadow.
    • It is solid.
    • It is vibrating.

  7. What change removes the source of sound from the rubber band?

    • Stop its vibration.
    • Measure its length.
    • Move it into light.

  8. What must be added so eyes can detect a red ball in a pitch-black space?

    • Colder air around the object.
    • A louder sound near the object.
    • Light reaching the object and eyes.

  9. A light test uses thin cloth. Which result should be recorded?

    • the material itself
    • no matter at all
    • some light

  10. Which setup controls variables in a light investigation?

    • Use one light and equal pieces.
    • Change the light each time.
    • Use different-size pieces.
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