Why does the Moon change shape?
You said Earth's shadow covers the Moon to make phases. A phase is only how much of the Moon's sunlit half is facing us.
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1 lesson for “Moon phases”
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Do molecules in a solid ever move?
You said the molecules in a solid are frozen still. They are never still: every particle vibrates, and heat changes how fast they shake.
Try this lessonWhy doesn't the Moon fall down to Earth?
You said there is no gravity in space, so astronauts float. The space station is falling around Earth the whole time.
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