Across
- 2. A natural satellite that orbits a planet; some planets have zero and some have many
- 3. One complete spin on the axis. Ex: Earth makes one rotation every day for 24 hours.
- 5. The regular rise and fall of water levels along the shore, caused by the Moon’s gravitational force.
- 8. The third planet from the sun and the only planet in the solar system where life exists.
- 9. The four natural divisions of the year based on changes in temperature due to varied amounts of sunlight (both intensity and number of daylight hours received)
- 10. Solstice in June, Winter Solstice in December
- 13. The appearance of the moon getting larger after a New Moon.
- 14. motion The way something appears, or seems to move. Ex: Things do not always move in the same direction as their apparent motion.
- 15. (moon) cycle The apparent shapes of the Moon in the sky. Phases are caused by the Moon’s orbit and the amount of light reflected off the Sun. The Moon completes a lunar cycle in about 29 days.
Down
- 1. The point where the Sun appears to reach either its highest or lowest point in the sky for the year and thus ancient astronomers came to know the day as one where the Sun appeared to stand still.
- 4. An imaginary line by which a body rotates. The Earth is tilted at a 23.5 degree angle. This tilt causes our seasons.
- 6. Eclipse This eclipse occurs when the moon moves between the Sun and the Earth, partially or fully blocking the Sun. Sun-Moon-Earth
- 7. A complete pass around the Sun or object in space, Ex. Earth takes 365 ¼ days, or one year. Ex: The Moon’s revolution around Earth takes about 29 days/1 month
- 11. The appearance of the moon getting smaller following a Full Moon
- 12. Eclipse This eclipse occurs when the Earth moves between the Sun and the Moon. Sun-Earth-Moon