Who can help me with a lab in physics ASAP PLS ig theonlylenn

In physics the desire of an object to keep doing what it is doing is termed?

If steel is more dense that lake water, why can a boat float

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents