Science

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Across
  1. 6. Liquids that can conduct electricity are called
  2. 9. A natural phenomenon where light is dispersed into its constituent colours, forming a spectrum after rain
  3. 10. The basic unit of life.
  4. 11. The force that pulls everything towards the Earth
  5. 12. The process by which plants make their own food using sunlight.
Down
  1. 1. The central part of an atom
  2. 2. A material that allows electricity to pass through it easily, like copper.
  3. 3. The process of making proteins in a cell.
  4. 4. The innermost planet of our solar system.
  5. 5. The phenomenon responsible for the twinkling of stars.
  6. 7. The change of a substance from solid to liquid.
  7. 8. Gas needed for burning