Across
- 5. made the first working pendulum clock in 1657
- 6. lightning is a form of
- 9. the barometer was invented in 1643 by
- 10. the telescope was invented around 1608 by
- 11. many important discoveries made through the use of the
- 12. the telescope allowed people to look at the
Down
- 1. used water than alcohol than liquid mercury
- 2. created calculus
- 3. Measures pressure of the air
- 4. more accurate way to tell time lost 15 seconds per day rather than 15 minutes
- 7. improved magnification to 33 times
- 8. the barometer uses