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Across 5. latent heat of .... is the energy needed when a material evaporates 7. the slope of a graph 9. ..... heater, an electrical heating device 10. electrical energy equals current multiplied by time multiplied by ... 12. flat part of a graph 14. this can be measured in kelvin 16. this is the unit for energy 17. heat is a form of this 18. solids, liquids and gases are .... of matter 19. another name for a gas

Down 1. the unit of mass 2. this means hidden heat 3. changing a liquid to a gas 4. apparatus used to do heat experiments 6. this measures temperature 8. a material which does not conduct heat 11. latent heat of ..... is the energy needed when a material melts 13. ..... heat capacity 15. pertaining to heat