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