How do bats use echolocation? Why does a siren's sound change as an ambulance drives by? Why can't we see colors in a dark place? See how scientists apply the scientific method to test theories about sound and light waves.
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How do bats use echolocation? Why does a siren's sound change as an ambulance drives by? Why can't we see colors in a dark place? See how scientists apply the scientific method to test theories about sound and light waves.
Read Less