Across
- 2. property : A characteristic that can be observed or measured without changing the substance.
- 5. energy : Energy that an object has due to its motion.
- 6. : A positively charged particle found in the nucleus of an atom.
- 7. change : A change that forms one or more new substances with new properties.
- 8. : A pure substance made up of only one kind of atom.
- 11. : The process by which gas changes into a liquid.
- 12. : A pure substance made of two or more elements chemically combined.
- 15. : The process by which a gas changes directly into a solid.
Down
- 1. : Workplace Hazardous Materials Information System.
- 3. : The process by which a solid changes directly to a gas without becoming liquid.
- 4. : The physical form of matter: solid, liquid, or gas.
- 6. substance : A material made of only one type of particle.
- 9. : A negatively charged particle found outside the nucleus of an atom.
- 10. symbol : An image used to warn about potential danger or risk from a substance.
- 13. : A particle with no charge found in the nucleus of an atom.
- 14. : The smallest particle of an element that retains its identity in a chemical reaction.
- 16. change : A change in appearance or state that does not create a new substance.