Across
- 2. - a protein molecule that regulates chemical reactions in living things
- 4. - when something like metal or stone is broken down overtime
- 6. - uncharged particle
- 9. - passing an electric current through a chemical compound to decompose it
- 10. - negatively charged particle
- 11. - positively charged particle
- 12. - a substance that burns and causes damage to tissue that is living
- 14. - a chemical reaction where heat is released into the surroundings
- 16. - the substances that go into a chemical reaction
Down
- 1. - made up of two or more elements but is still a pure substance
- 3. - a close cluster of atoms
- 4. - a chemical reactions where a substance reacts rapidly with oxygen and gives off heat
- 5. - substance that slows down a chemical reactions or stops it
- 7. - made of on type of particle and is a pure substance
- 8. - in a chemical reaction, a substance that speeds up the process without the substance being used up
- 11. Change - a change happens but no new substance is produced
- 12. - the study of properties and matter and how it changes
- 13. Change - a change happens and a new chemical substance is formed
- 15. - a chemical reaction where heat is taken from the surroundings
- 16. - a product of the chemical reaction of iron, oxygen, and moisture