Across
- 1. change where the substance remains the same
- 3. Girls
- 7. change where a new substance is created
- 12. City
- 13. a big number in front of a compound telling how many molecules there are
- 15. Their
- 16. arrangement of all the elements in order
- 17. my favorite teacher
Down
- 2. Love
- 4. a little letter below and to the right of an element that tells the number of atoms of that element
- 5. Phones
- 6. dense state of matter
- 8. anything that has mass and volume
- 9. state of matter that could fill a cup
- 10. number of hydrogen atoms in water
- 11. one or more element combined
- 14. smallest particle of matter