Across
- 4. the amount of space and object takes up
- 7. anything that has mass and takes up space
- 8. a single kind of matter that is pure and has specific properties
- 9. unique characteristics used to describe an object
- 11. the amount of force on an object
- 12. mass per unit volume
- 13. the center of an atom
Down
- 1. a basic unit of matter
- 2. a particle with a negative charge
- 3. the amount of matter in an object
- 5. pure substance made of only one kind of atom
- 6. a particle with no charge in the nucleus
- 7. a group of bonded atoms
- 9. a positively charged atom in the nucleus
- 10. a combination of two or more substcnaes not chemically combined