Activate Chemistry Kerboodle Book: Chapter 4

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Across
  1. 4. The mixture of gases surrounding the Earth.
  2. 9. Liquid rock that is above the Earth’s surface.
  3. 11. A burning reaction, in which a substance reacts quickly with oxygen, and gives out light and heats the surroundings.
  4. 13. This cycle shows stores of carbon, and summarises how carbon and its compounds enter and leave these stores.
  5. 14. The process that transfers energy from plants and animals.
  6. 15. The breaking up or wearing down of rocks by the effects of changing temperature; a type of weathering.
  7. 17. The rocky outer layer of the Earth.
  8. 18. This action breaks up all types of rock into smaller pieces, called sediments.
  9. 20. Pieces of rock that have broken away from their original rock.
  10. 24. The gradual increase in the Earth’s mean air temperature. (two words)
  11. 25. Movement of sediments far from their original rock.
  12. 26. Rock made from sediments.
Down
  1. 1. Rock made when liquid rock (magma or lava) cools and freezes.
  2. 2. The breaking up or wearing down of rocks by the action of chemicals such as those in rainwater; a type of weathering.
  3. 3. The transfer of energy as a wave.
  4. 5. The breaking of a rock into sediments, and their movement away from the original rock.
  5. 6. Rock formed by the action of heating and/or pressure on the sedimentary or igneous rock.
  6. 7. The settling of sediments that have moved away from their original rock.
  7. 8. The process plants use to make their own food, glucose. In photosynthesis, carbon dioxide and water react together to make glucose and oxygen.
  8. 10. The cutting down or burning of trees in forests.
  9. 12. The breaking up or wearing down of rocks by the action of living things; a type of weathering.
  10. 14. This cycle explains how rocks change and are recycled into new rocks over millions of years.
  11. 16. A long-term change in weather patterns. (two words)
  12. 19. The absorbing of energy by gases in the atmosphere, such as carbon dioxide: "the __________ effect".
  13. 21. A property of a material meaning that it is difficult to damage.
  14. 22. Liquid rock that is below the Earth’s surface.
  15. 23. This kind of material has small gaps that may contain substances in their liquid or gas states.