Year 8 Revision

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Across
  1. 1. How low or high a sound is.
  2. 3. A flow of electrical charges is known as _____?
  3. 5. When a solid turns into a liquid this process is known as _________?
  4. 7. Does not allow an electrical current to flow through it easily.
  5. 9. The scientific term for breathing out.
Down
  1. 2. The outer layer of the Earth.
  2. 4. The scientific term for breathing in.
  3. 5. Molten (liquid) rock found underground.
  4. 6. The highest point of a wave.
  5. 8. A substance made of two or more different atoms chemically joined together.