Phases – different shapes of the moon you see from Earth. Phases, Eclipses, and Tides Phases – different shapes of the moon you see from Earth. A C B E D H F I G
Eclipse – an object in space comes between the sun and a third object and it casts a shadow on that object. Solar Eclipse – when the moon blocks the view of the sun. Umbra – very darkest part of the moon’s shadow Penumbra – larger part of the shadow that is less dark
Lunar Eclipse – occurs during a full moon when the Earth is directly between the moon and the sun
Tides – rise and fall of ocean water caused by differences in how much the moon’s gravity pulls on different parts of Earth Spring – force produces a tide with the greatest difference between low and high tides – during a full and new moon Neap – tide with least difference between low and high tides – during the first and third quarter moon
Earth’s Moon The surface has many different features, including: Maria – dark, flat areas made from hardened rock from huge lava flows Craters – large round pits caused by the impacts of meteoroids Highlands – rugged moon surface, lighter in color Statistics: The moon is very dry and airless, it has no liquid water It is small compared to earth – 3476 km It has a large variation in surface temperature throughout the day – 130oC to -180oC Thought to exist because of the collision theory and that it was once part of Earth