Science Quest

12345678
Across
  1. 2. Small body of matter from outer space that enters the earth's atmosphere
  2. 5. Physicist who formulated the laws of motion and universal gravitation
  3. 6. Study of genes, heredity, and variation of organisms
  4. 7. Basic structural, functional and biological unit of all known living organisms
  5. 8. Substance with a pH less than 7
Down
  1. 1. Electrical potential difference between two points
  2. 3. Physicist known for the theory of relativity
  3. 4. Smallest unit of a chemical element