Across
- 2. Can be stretched into shape
- 5. A metal that is between Zinc and Aluminium on the reactivity series
- 7. Common name for a polymer used for plastic bags
- 9. Acid in your stomach that kills bacteria that may be on your food
- 12. Type of rock that is mainly calcium carbonate
- 15. Fuel for aircraft engines
- 17. The only metal that can rust
- 19. A fuel made from vegetable oils
- 20. A mixture of two metals or a metal and a non-metal
- 21. Unsaturated hydrocarbon
- 22. Thick and sticky, used in describing crude oil
Down
- 1. The process in which oxygen is removed from a compound
- 3. Common name for calcium hydroxide solution
- 4. A mixture of different hydrocarbon molecules found naturally underground
- 6. Type of rocks formed by cooling magma/lava
- 7. The process that helps remove carbon dioxide from the atmosphere
- 8. Metal that is used to make electrical cables
- 10. The most abundant gas in the current atmosphere
- 11. Process where crude oil is seperated into its fractions
- 13. can be hammered into shape
- 14. A solid substance formed during incomplete combustion
- 16. Fuels obtained from organisms
- 18. A base dissolved in water