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In this experiment, students will discover whether a sundial is as accurate as an atomic clock when telling time. We are only going to test hours, since sundials are designed only to show hourly chang ...
Shadows are sneaky things: they run ahead of you, jump behind you, and sometimes even disappear completely! Even Peter Pan had trouble catching his shadow.Believe it or not, all that sneakiness is act ...
How lunar eclipses occur.
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