Across
- 2. a cluster of atoms
- 8. measures how much matter is in a substance (unit: g)
- 10. the change of state where a liquid changes to a gas at the surface of the liquid
- 13. pushes upwards, as in pushes water upwards
- 15. describes a process that absorbs energy from the surroundings
- 16. a change of state where a gas is cooled and forms a liquid
- 18. when atoms rearrange to form new substances
- 22. the starting substances in chemical reactions
- 24. the change of state from liquid to solid
- 25. a mixture where the substances are mixed on the atomic level
- 26. the smallest building block that makes up all substances
- 28. a decrease in size
- 29. the change of state when a solid is heated and forms a liquid
Down
- 1. a process where two liquids or two gases mix due to the motion of their particles
- 3. an increase in size
- 4. a change of state from solid to gas
- 5. the substances formed in chemical reactions
- 6. describes a process that gives off energy in the form of heat, light or sound
- 7. a type of chemical equation where the chemicals in the reaction are represented by their chemical formulas
- 9. a change of state from gas to solid
- 11. a change that does not result in a new substance being produced
- 12. a change that results in a new substance being formed
- 14. a type of chemical equation where the chemicals are represented by the chemical names
- 17. a solid formed during a chemical change
- 19. a simplified representation of solids, liquids and gases
- 20. the change of state from liquid to solid
- 21. a measure of the mass per unit volume of a substance, d = mV (unit: g/cm3)
- 23. measures how much space is occupied by a substance (units: mL or cm3)
- 27. a change of state where a liquid is heated and changes to a gas within the liquid