Chemistry Crossword

4. a change from gas to liquid
5. is anything that has mass and occupies space
7. chemical combination of two or more elements in a specific ratio
11. can't reverse (burning wood) when two or more materials react and create new materials.
12. solids, liquid or gas depends on temperature
13. can reverse (e.g melting ice) one in which a material changes from one state to another.
15. pure substance that cannot be broken down into other substances (made up of only one type of atom)
19. each element is composed of a particle called
20. Place on periodic table showing vertically
21. appearance from the outside e.g lustre
22. Nucleus contained positively charged particles
23. liquid to a solid

1. a solid also can change directly into a gas and vise versa
2. substance made up of only one kind of matter, which has a unique set of properties
3. a table in which the elements are organized, by their physical and chemical properties
6. Place on periodic table showing horizontally
8. combinations of pure substances the components of a mixture do not combine
9. how a substance interacts with other substances (acid)
10. change from solid to liquid
13. characteristics of a substance
14. You can not brake it down into another substance
15. change from liquid to gas (a;so known as vaporization)
16. workplace hazardous materials information system
17. Neutral particles
18. Negatively charged particles