Light, sound and electricity activities
Follow light, explore vibrations and make a circuit work. Choose a question, read an explanation and try the model to see what changes.
Every activity includes five reading levels, word help, a checkpoint and links to its science sources. No login is needed.
Light and vibration
Make shadows, steer light and connect a vibration with a sound wave.
- 1
What makes a shadow bigger?
Move an object between a small light source and a screen to compare its shadow.
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How can a mirror redirect light?
Turn a flat mirror and follow equal angles at its surface.
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Why does light bend at a boundary?
Change the material and incoming angle at a transparent boundary.
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What happens when coloured lights overlap?
Combine red, green and blue light on a dark screen.
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How does a vibration travel as sound?
Follow a moving source and air particles that pass a disturbance along.
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Sound and circuits
Compare pitch and loudness, then build connections that carry current.
- 1
What makes one note higher than another?
Compare equal time windows with different vibration frequencies.
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How does wave size relate to sound strength?
Change amplitude while keeping frequency and the comparison distance fixed.
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What does a bulb need to light?
Open and close a virtual loop between a battery and a bulb.
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Which materials complete an electrical path?
Compare virtual samples in the same simple test circuit.
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How do different circuit paths change the result?
Compare equal resistive loads in one route and in separate branches.
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Keep exploring
Read more in Physical Science encyclopedia articles, with reading controls on each article. For printable practice, explore Maths worksheets and answer guides.