Front

What is Convection?

Back

Convection is the transfer of heat through a fluid (liquid or gas) where warmer areas of the fluid rise and cooler areas sink.

Front

What is Conduction?

Back

Conduction is the transfer of heat from one object to another through direct contact.

Front

What is Radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as light or infrared radiation.

Front

What happens to the density of water when it is heated?

Back

When water is heated, it becomes less dense and rises.

Front

What happens to the density of cold water?

Back

Cold water is more dense than warm water, causing it to sink.

Front

What is an example of Convection in nature?

Back

The Gulf Stream is an example of convection, as it carries warm ocean water from the south to the north.

Front

What is an example of Conduction?

Back

Touching a hot piece of metal is an example of conduction, as heat transfers from the metal to your hand.

Front

What is an example of Radiation?

Back

Getting sunburned is an example of radiation, as heat from the sun reaches your skin without direct contact.

Front

What is the role of a light bulb in a lava lamp?

Back

The light bulb heats the wax in the lava lamp, causing it to rise and fall in a convection cycle.

Front

What is the effect of a campfire on air around it?

Back

A campfire heats the air around it, causing the warm air to rise and cooler air to sink, demonstrating convection.