Across
- 1. changes - reversible
- 3. point The temperature at which a substance freezes
- 5. substance A material that is composed from only one type of particle
- 9. This is a process that can separate a mixture by making it move through another substance like a paper strip.
- 11. A barrier with holes
- 12. of matter Solid, liquid, gas at room temperature
- 14. of reaction Does the substance react quickly or slowly with other chemicals. Explosions have a very fast rate of reaction
- 16. Can the substance rust or corrode
- 17. These particles have more energy than in a solid and vibrate around and can change places with one another
- 18. Like a sieve with smaller holes
- 19. These can be used to separate items that are magnetic from non-magnetic items
- 23. Made up of one type of atom, can't be broken down into anything simpler
- 26. Is it easily scratched, does it crumble
- 29. Temporary
- 31. This exists in one of three states of matter and undergo changes of state to change between them
Down
- 1. Acid (e.g. vinegar), base (e.g. bicarbonate), neutral (e.g. water)
- 2. Colour, texture, shape, crystals, shiny, dull
- 4. Can the substance burn or explode
- 6. Substances made by combining two or more elements
- 7. Smallest part of matter
- 8. Permanent
- 10. Anything that takes up space and has mass
- 13. conductivity Its ability to let electricity pass through it
- 15. point The temperature at which a substance boils
- 20. conductivity Its ability to let heat pass through it
- 21. If it dissolves in different liquids
- 22. changes - irreversible
- 24. These particles cannot change places as they are held together very tightly in a regular arrangement
- 25. These particles have a large amount of energy and move around quickly in all directions
- 27. How heavy it is compared to other substances of the same size
- 28. Two or more atoms bonded together
- 30. substance A material that is composed from a mixture of two pure substances