On Earth gravity pulls objects towards the center of the Earth.
What is gravity? Gravity is a force that attracts objects together. What is the strength of Earth's gravity? The Earth is a very large object and it is also very heavy. This means that it has a strong gravitational field. The moon is smaller than the Earth and is not as heavy. Would you expect its gravity to be stronger or weaker than the Earth's gravity? Answer
Now try this experiment.
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