Vocab
Earth
Moon
Sun
Miscellaneous
100
The motion of one object around another object.
What is an orbit.
100
This keeps Earth from flying outward into Space.
What is the gravitational pull of the Sun.
100
This takes about 29.5 days for the moon to complete.
What is the lunar cycle?
100
Because Earth's surface is curved, the Sun's energy is the greatest near this.
What is the equator?
100
Scientists hypothesize that this formed from rock that was in a ring around Earth.
What is the Moon?
200
Occurs when the Moon moves into Earth's Shadow.
What is a lunar eclipse.
200
This causes the seasons to change.
What is the tilt of Earth's axis?
200
The Moon causes a shadow on a part of the Earth during this.
What is a solar eclipse?
200
The Earth follows this path around the Sun.
What is its orbit?
200
This is the daily rise and fall of sea level.
What is a tide?
300
The large dark flat areas on the Moon.
What is maria.
300
It takes one day for the Earth to complete one of these.
What is a rotation?
300
This causes the phases of the moon to change.
What is Moon's Revolution?
300
It takes this much time for the Earth to make one revolution around the Sun.
What is 365 days?
300
This is slightly tilted compared to Earth's.
What is the Moon's Orbit?
400
A day when Earth's rotation axis is the most toward or away from the Sun.
What is a solstice?
400
During this Earth's axis does not lean toward or away from the sun.
What is an Equinox?
400
This side of the moon always faces the Earth.
What is the near side?
400
In the sun atoms combine during this producing huge amounts of energy.
What is nuclear fusion?
400
These are light colored streaks that extend in all directions from some craters on the Moon.
What are rays?
500
When the Moon's shadow appears on Earth's surface.
What is a solar eclipse?
500
Earth's rotation makes the Sun appear to rise in this.
What is the East?
500
This phase is the second week of the lunar cycle when Moon's near side is completely lit.
What is full moon phase?
500
This is the lighter part of a shadow.
What is the penumbra?
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