Across
- 2. making land, water, air dirty and non usable
- 4. clear liquid
- 6. existing in a form that you can touch or see
- 8. how hot and cold something is
- 10. related to life and living things
- 11. things that are not wanted, especially after used
Down
- 1. the production of goods in factories
- 3. a very small part of an atom, for example an electron or a proton
- 5. related to nuclear processes and radiation
- 7. related to the structures and chemical composition of substances
- 9. the industrial process of digging coal or other minerals out of the ground