Across
- 3. - a chemical substance present at the start of a process
- 4. - Mixture that is the same all the way through
- 6. - Formulated the periodic table
- 7. - 2 substances added together to form a new substance
- 8. - the tendency to float in water or other liquid
- 9. - a change from one state (solid or liquid or gas) to another without a change in chemical composition
- 10. - A property you can notice with your senses
- 11. - process determined by substances' composition and structure
- 13. - a process in which one substance permeates another
- 15. - Basic unit of an element
- 16. - a chemical substance formed as a result of a reaction
- 17. - a particle with a negative electric charge
- 18. - Substance that can't be broken down any further
Down
- 1. - the property of an atom that causes it to have weight
- 2. - consisting of elements not of the same kind or nature
- 5. - Any property that becomes evident after a chemical reaction
- 9. - a fourth state of matter distinct from solid, liquid or gas
- 11. - Atoms bonded together
- 12. - a particle that is electrically charged positive or negative
- 14. - a homogeneous mixture of two or more substances