The Sun Fusion At Work

3. an instance of one moving object or person striking violently against another.
6. a chemical element that is the simplest and lightest of all chemical elements and is normally found alone as a colorless odorless highly flammable gas having two atoms per molecule
8. electronic component that generates. electricity.
9. antimatter, that is, positively charged beta-rays
11. the star around which the earth orbits.
13. a part or aspect of something abstract, especially one that is essential or characteristic.
15. an expert in or student of astronomy.
17. a reddish and glowing layer of gas above a star's (or Sun's) photosphere
18. the capacity to supply heat or do work
19. the force exerted per unit area

1. the region around a magnetic material or a moving electric charge within which the force of magnetism acts
2. chemical element with 2 protons in its nucleus
3. an event in which a large cloud of energetic and highly magnetized plasma erupts from the solar corona into space, causing radio and magnetic disturbances on the earth.
4. the very hot, very dense center of our planet.
5. like a decay chain, a series of reactions
7. occurs when two atoms slam together to form a heavier atom
10. the study of the absorption and emission of light and other radiation by matter.
12. the planet on which we live; the world.
14. of or at a fairly or comfortably high temperature.
16. the average kinetic energy of all the atoms or molecules of that substance