The Great Lakes of the United States are often covered with a sheet of ice every winter. Which best explains why this ice does not sink to the bottom?

Question

The Great Lakes of the United States are often covered with a sheet of ice every winter. Which best explains why this ice does not sink to the bottom?

Cold air temperatures attract the ice to the surface.
Ice is less dense than water.
Aquatic life buoys the ice.
Water currents prevent the ice from sinking.

Answer 1

The Great Lakes of the United States are often covered with a sheet of ice every winter. Which best explains why this ice does not sink to the bottom?

The correct answer is: Ice is less dense than water.