Across
- 2. boiling water in an uncovered pot is an example of an
- 6. Na + Cl -> NaCl is an example of a _______ ______________
- 7. a substance separated from a solution by chemical or physical change usually as an insoluble solid
- 8. combining water, iron filings, and calcium carbonate to produce heat is an example of an _______ ______________
- 9. a water bottle with a lid on it is an example of a _________ _________ because nothing can escape
Down
- 1. happens when one chemical substance is transformed into one or more different substances as a result of a change in the arrangement of atoms, such as when iron becomes rust
- 3. melting ice cubes is an example of an ____________ _______________
- 4. a solid, liquid, and a gas are examples of the _____ of matter
- 5. What kind of energy is produced by a fire?
- 6. saved; nothing lost or gained