Across
- 1. international system of units
- 3. burning a log what kind of change
- 4. positively charged particle in atom nucleus
- 5. SI unit for length
- 8. SI unit to measure time
- 11. brakinag a pencil what kind of change
- 15. science starts with a
- 18. describes matter
- 19. use of your five senses
- 20. an educated guess
- 22. a particle that defines a chemicalelement
Down
- 1. process used when solving problems
- 2. substance that cannot be broken down any more
- 6. step used to try our hypothesis and see if correct
- 7. 2 or more atoms that form the smallest particle of a compound
- 9. describe matter based ability to react and change to new matter
- 10. amount of matter an object is made of
- 12. SI unit for mass
- 13. a negatively charged particle that orbits the atom
- 14. SI unit for volume
- 16. anything with mass and volume
- 17. number of protons in an atom
- 21. describe matter using 5 senses