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Book 13, Question 126

Why Do Bike Reflectors Shine When a Car's Headlights Hit Them?

A bike reflector shines because it sends headlight beams straight back to the driver! It is covered in tiny three-sided mirror corners. That makes you easy to spot in the dark.

More fun facts

Sources: Science News Explores, BBC

Questions kids ask

How does a reflector help at night?

It sends a car's headlight beam back to the driver, so the bike gets noticed.