Across
- 7. the power of solar radiation per unit area
- 9. represents number of protons found in one atom
- 10. substnace whose atoms that have the same number of protons
Down
- 1. amount of matter that makes up an object
- 2. short term weather
- 3. long term weather
- 4. a column in the periodic table of the chemical elements
- 5. anything that takes up space and can be weighed
- 6. Horizontal rows of the periodic table
- 8. capacity to supply heat or do work