Across
- 3. Dark central portion of the shadow from an eclipse.
- 4. Dark spots on the sun that tell us the rotation rate and the strength of the magnetic field of our star.
- 7. Whenever less than one-half of the moon's face is illuminated, the phase is known as a _____.
- 8. When the amount of illumination is growing toward a full moon, the phase is said to be _____.
- 10. A solar flare that is known to effect life on Earth.
- 12. When the sun and moon are aligned, this type of tide occurs.
- 16. Earth revolves around the sun due to this kind of force.
Down
- 1. Whenever more than half of the moon's face is illuminated, the phase is known as a _____.
- 2. This is known as the motion of a planet, moon, star or galaxy around a central axis.
- 4. Occurs when the moon aligns exactly between the sun and Earth.
- 5. When the sun and moon are at right angles, this type of tide occurs.
- 6. A planet completes one _____ when it travels fully around the Sun once.
- 9. The process of combining lighter elements into heavier ones in the core of the sun (as well as other stars).
- 11. Scientist who discovered the Law of Universal Gravitation.
- 13. Outer portion of the shadow of an eclipse. You can only see a partial solar eclipse from this area.
- 14. Type of tide in which only one high and low tide occurs on the planet.
- 15. When the amount of illumination is decreasing toward a new moon, the phase is said to be _____.
