WARM UP • Copy Homework into Agenda – I WILL BE SIGNING • Get out your moon phases flip chart
The Moon rotates as it orbits EARTH The pull of gravity keeps the Moon in orbit around the Earth. The moon’s diameter is about ¼ Earth’s diameter The Moon is earth’s closest neighbor in space.
The distance between Earth and the moon is about 240,000 miles 100 X the Distance from: NYC to LA
It takes a spaceship about 3 days to reach the moon It would take a jet liner 20 days to reach the moon
Only one side of the Moon can be seen from Earth, “The Near Side” It takes the Moon 27.3 days to orbit the Earth
The Moon’s Craters Far side – Side of the Moon that faces away from Earth Nearside – Side of the Moon that faces towards Earth Covered with few dark-colored features Covered with a lot of dark-colored features Early astronomers thought that the dark areas might be bodies of water, so they called the areas MARA. This means “sea” in Latin.
NO LIFE The moon has… NO CLOUDS NO AIR NO OCEANS
Crescent vs. Gibbous Moons The amount of the Moon that you see from Earth depends on the angle between the Moon and the Sun. When the angle between the Sun and the Moon is small, you see a small amount of the Moon. When the angle between the Sun and the Moon is large, you see a large amount of the Moon. When the Moon appears close to the Sun in the sky When the Moon appears far away from the Sun in the sky
Eclipses When the Moon, the Sun, and the Earth line up exactly, a shadow crosses Earth or the Moon. An eclipse occurs when a shadow makes the Sun or the Moon seem to grow dark.
Lunar Eclipses The Moon becomes dark during a lunar eclipse because it passes through Earth’s shadow. Lunar Eclipses only occur during the FULL moon!
2 Parts of Earth’s Shadow Umbra Penumbra **Is a spreading cone of lighter shadow **Is the darkest part of Earth’s Shadow **The entire Moon can be in darkness because the Moon is small enough to fit entirely within Earth’s umbra. **The Moon moves into Earth’s penumbra and becomes slightly less bright.
Solar Eclipses **Occurs when the Moon passes directly between Earth and the Sun.