Across
- 2. Keeping something safe or not wasting it, like turning off lights.
- 7. A person who flies a plane or a futuristic spaceship.
- 8. Power from the movement of air that can make electricity.
- 10. Energy sources that will never run out, like solar and wind.
- 11. A famous Australian animal that hops on its strong back legs.
- 13. A large, strong building built in the past to protect people.
- 15. An aircraft without wings that can fly straight up by using big blades.
- 16. A vehicle or car that can move without a person driving it.
- 18. A black rock from underground that we burn for energy.
- 19. A piece of land with water all around it.
Down
- 1. A person who was born in a particular country or place.
- 2. A place, person, or thing where something comes from.
- 3. Power or electricity made from moving water.
- 4. Energy that comes from the sun.
- 5. The place where you go to catch a train, bus, or metro.
- 6. To make the air, water, or land dirty and dangerous.
- 9. The time that will come after now.
- 12. A very cold and snowy state in the United States.
- 14. Something used for transporting people, like a car, bus, or train.
- 17. We need this power to run machines and light up our houses.