Across
- 3. a method used to separate solids from liquids, or solids with different size particles in heterogeneous mixtures
- 5. another word for a homogeneous mixture
- 8. the flow of electrical charges through materials
- 12. these happen when atoms react and group together differently
- 13. a method used to separate substances of different density in heterogeneous mixtures
- 14. a mixture in which the different components can be distinguished
- 19. the component of an electric circuit which provides the electricity
- 20. a method used to separate liquids that have different boiling points in homogeneous mixtures
- 21. a type of matter which contains only one type of component
- 22. a chemical reaction that happens in some living things, such as yeast and bacteria
- 23. a material which allows electrical charges to move
Down
- 1. a chemical reaction that happens when some metal substances such as iron combine with oxygen in the presence of water
- 2. a type of matter which contains two or more pure substances
- 4. a mixture in which the different components cannot be distinguished
- 6. a material which does not allow electrical charges to move
- 7. the component of an electric circuit which transforms electricity into another type of energy
- 9. a device with a magnetic needle that always points north, we use it to orient ourselves
- 10. an object which can attract other objects made of iron and other magnetic metals
- 11. a connecting wire, usually made from copper,wrapped in plastic covering
- 15. a closed path through which electricity flows
- 16. the force of attraction exerted by magnets
- 17. a method used to separate solids from liquids in homogeneous mixtures
- 18. a chemical reaction that happens when objects or substances are burned