Across
- 4. Physicist who developed the theory of quantum mechanics
- 7. Mathematician who developed calculus
- 9. Physicist who developed the theory of relativity
- 10. Astronomer who discovered gravity
Down
- 1. Scientist who developed the vaccine for smallpox
- 2. Biologist who discovered the theory of evolution
- 3. Inventor of the light bulb
- 5. Chemist who discovered the elements polonium and radium
- 6. Biologist who discovered the structure of DNA
- 8. Chemist who discovered the periodic table