The kind of energy carried by electricity.
Something that is needed to make things happen.
The hotter something is the more heat energy it has.
The kind of energy in moving things.
The kind of energy given out by light bulbs, candles, etc.
The kind of energy that is made by anything that is making a noise.
Another word for nuclear energy.
The kind of energy stored in chemicals. Food, fuel and batteries all contain chemical energy.
Gravitational potential energy
The kind of energy stored by anything that can fall down.
The unit for measuring energy.
There are 1000 joules in 1 kilojoule.
Energy stored inside the particles that things are made out of.
The scientific word for 'stored' energy.
The kind of energy stored in stretched or squashed things which can bounce back to their original shapes.
Law of conservation
"The idea that energy can never be created or destroyed, only changed from one form of energy to another."
Something that changes energy from one form to another.
The way heat travels through solids.
A material that lets energy travel through it easily.
A material that does not let energy flow through it.
A completely empty space.
Please allow access to your computer’s microphone to use Voice Recording.
We can’t access your microphone!
Click the icon above to update your browser permissions above and try again
Reload the page to try again!
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Your microphone is muted
For help fixing this issue, see this FAQ.