Front

Heat is the transfer of energy from __________ places to ____________ places due to differences in temperature.

Back

warmer/cooler

Front

___________ is the transfer of heat in a fluid (liquid or gas) caused when hotter, less dense fluids rise and cooler, more dense fluids sink.

Back

Convection

Front

Why does your hand feel colder after holding an ice cube?

Back

The heat energy has left your hand.

Front

A metal cup feels hot right when you pour hot water into it. This is an example of a(n) ________________.

Back

Conductor

Front

The energy of motion is called _____________.

Back

Kinetic Energy

Front

What is the process called when heat is transferred through direct contact between materials?

Back

Conduction

Front

What is the term for the transfer of energy through electromagnetic waves?

Back

Radiation

Front

What happens to the particles in a substance when it is heated?

Back

They move faster and spread apart.

Front

What is an insulator? Give an example.

Back

A material that does not conduct heat well; example: rubber.

Front

What is the main source of heat energy on Earth?

Back

The Sun.