Across
- 2. Italian scientist who used a telescope to study the heavens and discovered Jupiter's **moons** (7 letters)
- 4. English mathematician who developed the three laws of motion and discovered universal gravitation (6 letters)
- 5. The systematic process scientists use involving observation, hypothesis, experimentation, and analysis (14 letters, two words)
- 7. Polish astronomer who proposed the **heliocentric theory** that the Sun is at the center of our solar system (10 letters)
- 9. Early feminist who argued for women's rights and equal **education** in "A Vindication of the Rights of Woman" (13 letters)
- 10. French philosopher known for championing freedom of speech and religious **tolerance** (8 letters)
Down
- 1. Baron who developed the concept of **separation of powers** in government with three branches (11 letters)
- 3. The intellectual movement also known as the "Age of **Reason**" that emphasized logic and individual rights (12 letters)
- 6. Philosopher who wrote about the social contract and believed people are naturally **good** (8 letters)
- 8. Enlightenment thinker who believed in **natural rights** of life, liberty, and property (5 letters)