SCIENCE CROSSWORD

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Across
  1. 2. Indicator commonly used to distinguish acids from bases.
  2. 5. of Curvature: Distance between the pole and the centre of curvature.
  3. 10. (Life Processes)
  4. 12. Image: Image that can be formed on a screen.
  5. 14. Reaction in which a more reactive element replaces a less reactive element
  6. 15. Conversion of absorbed nutrients into body tissues.
Down
  1. 1. Reaction between an acid and a base forming salt and
  2. 3. Point where parallel rays converge after reflection or refraction.
  3. 4. Red pigment in blood that transports oxygen.
  4. 6. Reaction that releases heat energy.
  5. 7. Movement of food from leaves to other parts of a plant.
  6. 8. Type of respiration that occurs without oxygen.
  7. 9. Wave-like movement that pushes food through the alimentary canal.
  8. 11. System: Sign convention used in ray diagrams.
  9. 13. Image: Image that cannot be formed on a screen.