What direction does heat transfer?

• Hot to cold

• Cold to hot

• Heat doesn't transfer!

• From lower temperature to higher temperature

Heat transfer through direct contact

• Conduction

• Convection

• Radiation

Heat transfer by electromagnetic waves

• Conduction

• Convections

• Radiation

Heat transfer by the movement of fluids

• Conduction

• Convection

• Radiation

What does a thermometer measure?

• Density

• Pressure

• Heat energy

• Volume

The sun heating the Earth

• Conduction

• Convection

• Radiation

Cooking an egg in a frying pan

• Conduction

• Convection

• Radiation

Boiling water in a pot

• Conduction

• Convection

• Radiation

Touching a hot seatbelt in the car

• Conduction

• Convection

• Radiation

Warming your hands near a campfire

• Conduction

• Convection

• Radiation