Across
- 2. to decide something is true after looking at all the evidence you have collected.
- 3. when substances are mixed together and change chemically to form a new substance
- 4. a cloudy mixture of insoluble solid particles in a liquid
- 7. can dissolve
- 9. To put a substance, such as oil, on a surface in order to reduce friction
- 12. the amount of force that pulls objects towards the Earth
- 15. the liquid in which a solute dissolve
- 17. A material or piece of equipment with holes in it that will only allow substances of a certain size through the holes
- 19. the same throughout
- 20. forms by when two or more different substances mixed together but are not chemically joined
- 21. When something has energy, it can make things move and cause things to change; all living things need energy to exist
- 22. to put things in groups according their type
Down
- 1. to divide or split something into different parts
- 5. the material that is dissolved
- 6. something that does not have a good effect.
- 8. a device for connection an electric wire or cable to an electricity supply
- 10. a device to connect two wires together
- 11. The unit used to measure weight
- 13. The amount of matter in an object, measured in kilograms
- 14. circuit a circuit where the electricity has one only path to flow along
- 16. A push or pull that tries to change the position or shape of an object
- 18. the amount of energy transferred when a force makes an object move