Across
- 3. A substance formed by mixing two or more chemical elements
- 5. Linked molecules that make chains
- 8. a physical property measuring an object's mass per unit volume
- 10. A physical substance that occupies space
- 11. design, building, and use of engines, machines, and structures
- 12. The neutral charged atoms in a nucleus
- 14. A translucent material made from sand, silica, and lime
- 16. substance of exhibiting both elastic and viscous behavior
- 20. Having the structure and form of a crystal
Down
- 1. A metal with the atomic number 29
- 2. Subatomic particle with a negative charge
- 4. Can be drawn into a thin wire
- 6. Object that can stretch and return to its original shape
- 7. The positively charged atoms in a nucleus
- 9. a solid chemical element like silicon, with electrical conductivity between a conductor
- 13. Properties of an object that does not allow water to penetrate
- 15. Flows easily to full container
- 17. Made from aggregate, water, cement
- 18. The study of the structure and behavior of the physical and natural world through observation
- 19. Solid at room temperature
- 20. Made of clay and hardened by heat
- 21. Without clearly defined shape or form