Relating to or using the natural heat produced inside the earth.

A condition in which the temperature of the body is very low.

Relating to or caused by heat; designed to keep you warm by preventing heat from leaving your body.

A container that keeps liquids cold for long periods of time.

A device that automatically adjusts the temperature in a room to a desired level.

________ power comes from the earth.

My sister got ________ when she fell into the icy lake.

When I go sled riding I put on my _______ clothing.

I took a _______ full of warm mac and cheese for lunch today.

My husband keeps the ______ set at 65 degrees.