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PS Vocab
Term | Definition |
---|---|
gravity | when you pull or push |
scientific model | a simple thing to explain something complicated |
mass | weighing something |
rotation | when you spin something around |
revolution | forcible overthrow of a government or social order in favor of a new system. |
orbit | when something goes around something in a circle |
solar system | all the planets is in the solar system |
axis | where something meets in the middle |