Across
- 3. Element(s) Before arrow
- 7. Anythings that has mass and takes up space
- 8. Elements are not equal on both sides of the equation
- 10. Building blocks of life
Down
- 1. The law that says no mass is created or destroyed
- 2. Element(s) After arrow
- 4. Two or more elements physically combined
- 5. A pure substance only made of one atom
- 6. Two or more elements chemically combined
- 9. Elements are equal on both sides of the equation