Across
- 2. To dull the luster of a metallic surface
- 7. Anything that has volume and mass
- 12. Force that attracts or repels objects
- 13. All the water on Earth's surface
- 15. Hammering metal into a flat sheet
- 17. A combination of two or more substances that do not chemically combine and can be separated
- 18. A solid that is formed from a chemical reaction by combining two liquids
- 19. The amount of matter in a given space or volume
- 20. Any film or coating on metal caused by a chemical reaction with oxygen
- 21. A measure of how much matter is present in a substance
- 22. The element with atomic number 6
- 23. The ability of an object to be drawn into a wire
Down
- 1. A substance that is made of only one type of atom
- 3. One of the four conditions which matter exists
- 4. The layer of gases surrounding the Earth
- 5. The ability of a substance to burn casing fire
- 6. Tending to break rather that to flex or bend
- 8. The part of the Earth where living organisms exist
- 9. An indication that an event has or has not occurred
- 10. How well heat or electricity moves through an object
- 11. One or two letters used to represent an element
- 14. The color of a mineral in powdered form
- 16. The smallest particle of an element