Across
- 3. Printing press was invented by Johannes ___________.
- 5. Carl Frederick _______ was known as the prince of mathematicians.
- 7. Charles Darwin is best known for his theory of _________.
- 9. Who is the author of “Principia Mathematica”?
- 10. Albert Einstein received the Nobel Prize for physics for his discovery of the law of ____ effect.
Down
- 1. Alternating current was invented by Nikola _________.
- 2. Telescope was invented by ___________.
- 4. Thomas ________ invented the incandescent bulb.
- 6. _____________ proved that the Earth rotated around the Sun.
- 8. “Every action has an equal and opposite reaction” is Newton’s _____ law of motion.