Across
- 4. branch of physics that studies the relationship between time and space
- 6. branch of physics that studies magnets and electricity
- 7. branch of physics that studies energy, heat and temperature
Down
- 1. he measure the circumference of Earth using the shadow produced by two wooden sticks
- 2. branch of physics that studies celestial bodies
- 3. branch of physics that studies rainbows, mirrors and light
- 5. he proposed that time is relative