Across
- 1. Mixtures of 2 or more pure substances
- 3. two or more substances that have joined together
- 5. Can not be reversed
- 7. Can the substance rust or corrode
- 10. substances bade up of one type of atom
- 13. An irreversible change
- 14. The particles cannot change places as they are held together very tightly in a regular arrangement
- 17. Atoms are the smallest part of matter
- 19. The state that matter is in
- 23. Two or more atoms that have bonded together
- 24. These particles touch each other in a random arrangement
- 25. Barrier with holes
- 27. Its ability to let heat pass through it
- 28. The point at which something boils
- 29. Acid (e.g. vinegar), base (e.g. bicarbonate), neutral (e.g. water)
Down
- 2. Wether it is colourful, textured, shaped, shiny, dull
- 4. Can be reversed
- 6. The point at which something freezes
- 7. Can the substance burn or explode
- 8. The rate at the substance reacts
- 9. Its ability to let electricity pass through it
- 11. crumbles easily
- 12. If it dissolves in different liquids
- 15. A material that is composed of only one type of particle
- 16. Anything that takes up space (has volume) and has mass
- 18. These particles are spaced far apart in a random arrangement
- 20. Barrier with small holes
- 21. We use the term particle to describe the smallest units of matter
- 22. How heavy it is for its size
- 26. A reversible change