Sun, Earth, and Moon
Terms
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- Axis
- The imaginary line that passes through Earth's center and the North and South poles.
- Moon
- a natural satellite that revolves around Earth.
- Solstice
- Either of the 2 days of the year where the sun appears farthest north of the equator and farthest south of the equator.
- Equinox
- Either of the 2 days of the year on which neither hemisphere is tilted toward or away from the sun.
- Waning
- When the visibility of the sunlit portion of the moon appears to grow smaller from day to day.
- Waxing
- When the visibility of the sunlit portion of the moon appears to grow larger from day to day.
- Solar Eclipse
- Occurs when the moon passes directly between Earth and the sun, blocking sunlight from Earth.
- Lunar Eclipse
- Occurs at a full moon when Earth is directly between the moon and the sun.
- Tides
- The rise and fall of ocean water that occurs every 12.5 hours or so.
- Moon Phase
- The shape of the lit portion of the moon that can be seen from Earth.
- Rotation
- The movement of the earth that causes day and night is
- Day
- When our part of the earth turns toward the sun
- Night
- When our part of the earth rotates completely away frow the sun
- Revolution
- Each ...... Of the earth around the sun takes about 365 days or one year
- Seasons
- The earths yearly revolutions together with the tilt of the axis make the
- Winter
- When the north pole is tilted AWAY from the sun the united states has
- Summer
- When the north pole is tilted TOWARD the sun the united states has
- Spring
- In the spring and fall the rays of the sun hit the northern and southern hemispheres equally
- Orbit
- This is the PATH the earth takes around the sun
- Twelve
- How many hours are there in half a rotation of the earth