Across
- 4. pure substance that cannot broken down any further
- 5. a compound of a metal and non-metal
- 7. made up of one type of matter
- 8. shiniest of a substances,
- 11. ability to conduct electricity or heat
- 13. when non-metal combine
- 14. workplace hazardous materials information system
- 17. chemical reaction that absorbs heat energy
- 19. when a solid changes to a gas
- 21. the number of protons in the nucleus of an atom
- 24. when a gas changes to a solid
Down
- 1. the mixture of magic and chemistry
- 2. the mass of all protons and neutrons in an atom
- 3. the horizontal rows on the periodic table
- 6. the center of an atom
- 7. change in appearance or state
- 9. when a new substance is formed and non-reversible
- 10. mixture in which the different substances are visible
- 12. contaminated material that is a threat to humans and health
- 15. mixture of two or more pure substances that look like one substance
- 16. chemical reaction that releases heat energy
- 18. can be in between metals and non-metals
- 20. electrically charged atoms
- 22. can eat away or corrode
- 23. substances in a reaction