Environment

2. The planet on which we live
3. The air round the Earth or round another planet
7. to make air, water, or land too dirty and dangerous for people to use in a safe way
8. Space and everything that exists in it, including the Earth and all the other planets
9. The object similar to a planet that goes round the Earth and that you can see shining in the sky at night
11. Working to protect the environment
12. Things such as pieces of paper that people have dropped on the ground in a public place, making it untidy
13. A hard clear substance used for making objects such as windows or bottles

1. To take air through your nose or mouth and let it out again
4. One of the large areas of salt water that cover most of the Earth
5. Oceans, rivers, seas, lakes and forests, animals, cars, plants, cities, people and YOU
6. A living thing that grows in soil, has leaves and roots, and needs water and light from the sun to live
10. The type of weather that a country or region has