Across
- 6. a metal that rusts and can be magnetised
- 8. a force that attracts a body to the centre of the earth
- 9. process of adjusting of organism with its environment
- 10. a simple machine that consists of a bar that is fixed at one point
Down
- 1. a method to remove light insoluble impurities from water
- 2. an instrument that records the shock waves produced in an earthquake
- 3. the process by which seeds sprout leaves
- 4. this can tell how closely the molecules are packed
- 5. Green pigment that helps plants make food
- 7. a mixture of rotten plants and food that is used as fertilizer