Across
- 2. cloud of dust and gas from which stars can form
- 4. one of the terrestrial planets
- 7. indicator of a terrestrial planet
- 11. one of the elements in a gas giant
- 13. another phase of matter; gas is super charged with energy so electrons are knocked off and the gas has a charge
- 15. form of energy related to magnetism
- 16. name of galaxy we live in
- 18. fused into helium in the sun
- 19. gas and ice giants
- 20. reaction that turns hydrogen into helium and generates all of the sun's energy
Down
- 1. force that holds the sun together and allows the solar system to stay together
- 3. one of the chemicals in the liquid on an ice giant
- 5. indicator of a jovian planet
- 6. name of the arm of our galaxy where our solar system is
- 8. sign that the sun's magnetic field is interacting with a planet's atmosphere
- 9. mark indicating a strong magnetic field on the sun's surface
- 10. what pluto is; a chunk of material too small for a planet and too large for an asteroid
- 12. what the sun will become when it runs out of hydrogen
- 14. another name for the magnetic field formed by convection in our sun
- 17. outer edge of the solar system; cloud of icy debris