Grade 7 Heat and Temperature

Front

What is central heating?

Back

A system that heats a whole house using a central source of heat.

Front

What is heat energy?

Back

Energy that transfers from high to low temperature.

Front

What are natural sources of thermal energy?

Back

Sources like the Sun, decay/decomposition, and geothermal energy.

Front

Why does melting polar ice contribute to climate change?

Back

Because the ice was keeping Earth cool by reflecting the heat from the sun.

Front

What type of heat energy does a solar oven use to cook food?

Back

Radiation.

Front

What is conduction?

Back

The transfer of heat through direct contact between materials.

Front

What is convection?

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

What is radiation?

Back

The transfer of heat in the form of electromagnetic waves.

Front

What is thermal energy?

Back

The total kinetic energy of particles in a substance.

Front

What is temperature?

Back

A measure of the average kinetic energy of particles in a substance.