Across
- 1. a substance that cannot be broken down into simpler substances
- 3. atoms or molecules pack close to each other in fixed locations
- 6. absorbs energy from their surroundings as they occur
- 7. can be found with the ratio and volume but also is the fundamental property of a substance
- 8. submicroscopic particles that are fundamental building blocks of matter
Down
- 2. provides a deeper and broader explanation for observations and laws
- 4. first step of the scientific method
- 5. base unit of mass