What are infrared rays?
A type of radiant energy that's invisible to human eyes but that we can still feel as heat.
What are greenhouse gases?
Gases that can absorb infrared rays and heat up the atmosphere.
How do greenhouse gases affect climate change?
Greenhouse gases trap heat from the Sun’s infrared rays which makes a blanket of warmth around the Earth.
What is the cause of current climate change?
The cause of current climate change is largely human activity, like burning fossil fuels, like natural gas, oil, and coal.
What is conduction?
Conduction is the transfer of thermal energy by direct contact.
What is convection?
Convection is the transfer of energy in a fluid by movement of the heated molecules.
What is radiation?
Radiation is the transfer of energy by electromagnetic waves.
What is a current?
A current is a steady, predictable flow of fluid within a larger body of that fluid.
What is wind?
Wind is moving air.
Is air a fluid?
Yes! If it flows, its a fluid. Air is a fluid.
What are air currents?
Air currents are the flowing movement of air within a larger body of air.
Where do air currents flow?
Air currents flow in the atmosphere, the layer of air surrounding the Earth.
How does the sun cause air currents?
Air currents are caused by the sun's uneven heating of the Earth.
