Across
- 2. It is a non-renewable energy source. We mine it and burn it to produce thermal energy
- 3. The energy that produces heat.
- 5. energy It is much better for the environment because it doesn't cause pollution.
- 6. It is a type of energy produced in different ways. Some examples are traffic lights, the Sun , a lantern...
Down
- 1. The energy that is in the nucleus of an atom. It can be used to make electricity.
- 4. It is the ability to do work.