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Grade 2 · Science · Unit 4 of 8

Light and Sound

Where light and sound come from and how they move

What your child practises

Sound is made by vibrations and can bounce, travel and be absorbed. Light comes from sources such as the Sun, fire and electricity, travels in straight lines and bounces off surfaces. Children also learn to protect their eyes and ears.

Nunavut Curriculum approved guide: Nunavut Science K–6 (2025), 2.P.1.3; 2.P.1.4 · sources of light and sound, and how light behaves

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    Fireflies make their own light. Is a firefly a source of light?

    • No
    • Only at noon
    • Yes

  2. Question 2

    What makes a sound?

    🔔
    • something cold
    • something vibrating
    • something very still

  3. Question 3

    Does it make light or sound? Tap an item, then tap its basket.

    Sort into: 💡 light source · 🔊 sound source

    • ✨a firefly
    • 🐕a barking dog
    • ☀️the Sun
    • 💡a lamp that is on
    • 🎸a guitar string
    • 🔊a speaker

  4. Question 4

    A drum is hit. The drum skin moves back and forth fast. This is called…

    • melting
    • vibrating
    • freezing

  5. Question 5

    Which one is NOT a source of light?

    • a flashlight
    • the Moon
    • the Sun

  6. Question 6

    Put your fingers on your throat and hum. You feel…

    • a magnet
    • a vibration
    • a freeze

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