Topic
Light & sound
Color, waves, mirrors, music, rainbows, radio.
📖 storybook How does a song fly through the air into your radio?
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📖 storybook Why is the sky blue?
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📖 storybook WiFi, Bluetooth, infrared — why does a TV remote need to point, but your phone doesn't?
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📖 storybook What does a microwave actually heat?
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What happens when a headphone plays a second sound?
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📖 storybook Why does a spoon look bent in water?
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Why can't you see around a corner, but you can hear around one?
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Why does mixing all the paint colors make brown, but all the lights make white?
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Why can a singer shatter a glass with just the right note?
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Why does a rainbow always curve, and could you ever reach its end?
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Why does a pencil's shadow have a fuzzy edge sometimes and a sharp edge other times?
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📖 storybook Why does a police siren change its note as it races past you?
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Why do bendy glass threads carry far more of your video call across the world without it fading?
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Why is a laser pointer a tiny dot far away but a flashlight is just a blob?
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Why does a magnifying glass flip the world upside down when you back it away?
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What happens when two identical sounds overlap?
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Why does a thin soap bubble swirl with rainbow colors when soapy water is clear?
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Why does plucking a tighter guitar string make a higher note?
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Why does a red apple turn black under a green light?
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Why does a sound die out fast in a small room but echo forever in a cave?
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Why does the moon look huge near the horizon but tiny up high?
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Why does shaking a rope fast make tiny ripples but shaking it slow makes big rolls?
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Why does some thunder crack but other thunder rumbles?
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If the sky's blue comes from bouncing light, why aren't clouds blue too?
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