Across
- 4. Characteristics that can be observed or measured
- 5. Material that possesses physical properties
- 7. The substance which participates in chemical reaction
- 8. A set of levels or numbers which are used in particular system of measuring or comparing
Down
- 1. Reaction States on matter that stays the same
- 2. A representation of an ideas or object used to describe and explain
- 3. A substance that is presented at the end of a chemical reactions
- 6. The basic building block of chemistry
- 9. Reaction State of matter that changes