Drag each label to the correct location on the models. each label can be used more than once. label each image as containing atoms only, molecules that are not compounds, or compounds. atoms molecules that are not compounds compounds

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

That's false, when you're born your skull has not fused together yet.