WWB Trainer

WWB Flashcards

What property of sound changes when it moves from air to water?

Speed (not frequency, not wavelength)

Science Story 
Waves.

In physics, what does apparent “stillness” usually represent?

Dynamic equilibrium

Science Quote 
Impermanence.

When and where did blue eyes originate?

One person about 8,000 years ago near the Black Sea

Science FAQ 
Banana vs. Human DNA.
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