Across
- 1. a substance that has a fixed composition
- 3. a mixture that is uniform in composition (looks the same throughout)
- 5. a change in a substance that does not involve a change in the identity of the substance
- 10. is a physical change from one state to another
- 11. a change in which one or more substances are converted into different substances
- 13. the smallest unit of an element that maintains the chemical identity of that element
- 15. a mixture that is not uniform in composition (looks different throughout)
- 16. matter that has a definite volume but an indefinite shape; particles are close together and can slide around each other
- 17. a blend of two or more kinds of matter, each of which retains its own identity and properties
- 18. the substances that react in a chemical change
- 19. a substance that can be broken down into simple stable substances; made from the atoms of two or more elements that are chemically bonded
- 21. do not depend on the amount of matter present
- 22. depend on the amount of matter that is present
- 23. matter that has neither definite volume nor definite shape; particles are free-floating and collide with each other
Down
- 1. a high-temperature physical state of matter in which atoms lose most of their electrons, particles that make up atoms
- 2. a characteristic that can be observed or measured without changing the identity of the substance
- 4. anything that has mass and takes up space
- 6. relates to a substance’s ability to undergo changes that transform it into different substances
- 7. the substances that are formed by the chemical change
- 8. the amount of three-dimensional space an object occupies
- 9. Energy can be absorbed or released in a change, it is not destroyed or created.
- 12. a pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom
- 14. matter that has definite volume and definite shape; particles are packed tightly, can vibrate but not move
- 20. a measure of the amount of matter