do now 1._____force that keeps the planets from being pulled into the sun (gravity) 2. _____...
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Do Now1. _____force that keeps the planets from
being pulled into the sun (gravity)
2. _____ contains galaxies, gas, energy, comets, space rocks (big bang theory)
3. _____ theory that says a large dense massive ball of gases exploded and the universe began (big Bang theory)
4.____person who came up with the heliocentric model (astronomers)e(as
5. _____ the motion of one object moving around another object (rotation/revoution)
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1. What causes the phases of the moon?
2. What is waxing?
3. What is waning
4. What are the phases of the moon?
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1. The moon has phases because it revolves around the Earth and the sunlight hits the moon at different angles .
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• 2. Waxing-getting larger• increasing light on the right
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• 3. Waning-light is getting smaller• no light on the right
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18.2 Phases of the Moon• The lighted side of the Moon faces away
from Earth.• How the moon appears to Earth dwellers at
different positions in its orbit is shown below:
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New Moon
•part of the moon facing Earth is dark•sunlight shines on the back side of the moon.•moon is between the Earth and the Sun.•Solar Eclipse•Spring tide
Phases
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Waxing Crescent
• A small part of the right side of the moon is lit.
• The light grows every day.
Phases
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First Quarter
• The right half of the moon is lit• Neap tide • The light is still growing.
Phases
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Waxing Gibbous
• More than half of the right side of the moon is lighted.
• The light is still growing.
Phases
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Full Moon
• Moon is completely lit• Earth is between the sun and the moon• lunar eclipse• Spring tide
Phases
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Waning Gibbous
• A small part of the right side of the moon is dark.
• The light is growing smaller.
Phases
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Last Quarter or Third Quarter
• The right half of the moon is dark• Neap tide• The light is getting smaller.
Phases
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Waning Crescent
• More than half of the right side of the moon is dark.
• The light is getting smaller and smaller until it is a new moon.
Phases