In science class we have began a new unit which is called forces and motions. I don't know much about forces and motions, in second grade I have learned about gravity which is a force on planet Earth how it pulls everything to the earths surface. but since then and on haven't learned much about gravity so I'm looking forward to learn more about forces and motion. I have also some specific questions about this unit like what is motion? How does motion effect people? How many forces are? How many motions there are? What is effected by forces and motions?
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