8A, 8B, 8D, 8E, 8G, 8H, 8J, 8K

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Across
  1. 3. A mixture made from a metal and other elements to improve properties
  2. 7. Movement of dissolved food molecules through the wall of the small intestine into the blood
  3. 8. Bending of light as it passes from one material to another
  4. 10. An organism that breaks down dead plants and animals
  5. 13. Transfer of pollen from the male part of a flower to the female part
  6. 14. A reaction where a substance burns in oxygen releasing heat and light
  7. 15. Joining of male and female reproductive cells
Down
  1. 1. The process of breaking food into smaller soluble molecules
  2. 2. Tiny single-celled living things that can exist almost everywhere
  3. 4. diet Eating the correct proportions of different food groups for good health
  4. 5. A substance in food needed for energy, growth, and repair
  5. 6. The rate at which energy is transferred or work is done
  6. 9. Slow damage to a metal caused by chemical reactions with the environment
  7. 11. A reaction where oxygen combines with another substance
  8. 12. rock Material formed when molten material cools and solidifies