Across
- 3. a small rocky body orbiting the sun
- 5. a half of a sphere
- 7. a closed, symmetric curved shape like an oval that has a constant sum of distances of two fixed points
- 8. the force that attracts a body toward a physical body having mass
- 10. a year, occurring once every four years, that has 366 days including February 29
- 12. method of expressing numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10
- 14. a meteor that survives its passage through earth’s atmosphere
- 15. the curved path of an object around a star, planet or moon
Down
- 1. a celestial object consisting of ice and dust that leaves a “tail” of gas and dust particles
- 2. the distance around a curved geometric figure
- 4. a lens or other object that causes refraction
- 6. an instance of revolving
- 9. the action of rotating around a center or axis
- 11. a representation or copy of an object that is smaller or larger than the actual object
- 13. a piece of glass, metal, or other material for reflecting light in a required direction