Question

why the hot water goes up​

Answer 1

Explanation:

The hot water hoses up because

it is less denser then the cool water.

I

Answer 2

Answer:

When fluids (liquids and gases) are heated, they expand and therefore become less dense. Any object or substance that is less dense than a fluid will float in that fluid, so hot water rises (floats) in colder water. When fluids are cooled, they contract and therefore become more dense.