Across
- 2. measures how much space matter takes up
- 5. the amount of matter in an object
- 7. particle with no electric charge
- 8. a material that cannot be broken down further
- 10. the resistance to sinking
- 13. small particles with a negative electric charge
- 15. the amount of mass for each cm of a substance
Down
- 1. ability to be bent, hammered or flattened
- 3. anything that has mass and volume
- 4. particles with more than one atom joined together
- 6. the smallest unit of an element
- 9. the center of an atom
- 11. ability to be pulled into thin wires
- 12. a particle with a positive electric charge
- 14. how strongly gravity pulls on an object