Science · Stage 3
Investigate: How Does Light Travel?
Follow a beam of light, find out why shadows form — then learn to test it fairly!
✦ Science📘 Stage 3 · S3⏱ ~10 min🧒 Ages 7–8★ Free to start
predict, then change one thing and keep the rest the same to make my test fair.
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Kavi's Light Investigation
Kavi flicks on a torch 🔦 in a dark room. "Whoa — look at my beam! Light zooms out of a source and travels in a perfectly straight line 📏. It never bends on its own." Kavi holds up a cup, and a dark shape appears on the wall 🌑. "A shadow! The cup stopped my straight light. Today we follow light, find out why shadows form — then learn the scientist's secret: how to run a fair test!"
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What your child will learn
1How light travelsLight comes from a source and zooms out in straight lines. Tap each one to learn more.
2Light source or not?A light source makes its OWN light. Some things only bounce light back. Tap the right box!
3Fair test or unfair test?Scientists test carefully so the answer is trustworthy. Tap each card.
4Be the light scientistPredict first, then tap to check! A good scientist guesses, then tests it fairly. Tap Next test for more.
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A peek inside
Light travels from a source in a straight line. Name something that makes its own light.
A light source makes its own light — the sun blazes in the sky all day.
Try this at home: How does light travel from a source?
Ready to play and learn?
Start the free interactive lesson, or print the handout for screen-free play.
Part of Science · Stage 3 · S3 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.