Earth, Moon, and Sun Relations
Lunar Phases/Cycle
Lunar Eclipse
Solar Eclipse
Vocabulary
100
Earth spins on its axis and at the same time, revolves around the sun.
What is Earth's orbit?
100
New Moon
What is the first phase in the moon cycle?
100

When the moon moves through Earth's shadow.

What is a lunar eclipse?

100
When the moon is directly between the Earth and the Sun.
What is a solar eclipse?
100
One body that revolves around a larger body.
What is a satellite?
200

A body that orbits Earth is the moon, this is also know as Earth's what?

What is Earth's satellite?

200

The different shapes of the moon you see from earth are what?

Phases

200

Sunlight streams past Earth to produce a new moon.

What happens before a lunar eclipse?

200
When the shadow of the moon falls on part of the Earth.
What causes a solar eclipse?
200
A force that pulls objects towards one another depending on their masses. The greater the mass, the greater this force.
What is gravity?
300
Earth revolves around the sun, as the moon revolves around Earth.
What is the Earth and Moon's orbit of the sun?
300

True or False:  One day on the moon is the same length as one month on Earth.

True

300

The moon is in complete darkness because it fits entirely within Earth's umbra.

What happens when Earth's umbra covers the moon?

300
When the sun's light is completely blocked by the moon.
What is a total solar eclipse?
300
A celestial objects casts a shadow on another celestial object.
What is an eclipse?
400

Earth's gravity keeps the moon orbiting Earth.

What is the cause of Earth's satellite?

400

True or False: The moon's orbit around the Earth is absolutely straight with respect to Earth's orbit around the sun.

False, it is slightly tilted.

400
When an hour or more passes, the moon moves slowly out of Earth's umbra, and back into sunlight streaming past Earth.
When does a lunar eclipse regress?
400
The area directly in line with the moon and the sun.
Where does the umbra lie on Earth?
400
An umbra is the darkest part of a shadow, and the penumbra is the area of a shadow that surrounds the penumbra.
What is the difference between an umbra and penumbra?
500

We see the moon on Earth because the moon reflects sunlight received by the sun.

Why is the moon visible from Earth?

500

The time it takes for the moon to complete one rotation, is also the time it takes for the moon to complete one revolution(29 days)

What is the relation between the moon's rotation and revolution?

500

What is a Lunar Eclipse?

When Earth passes directly between the Sun and the moon.

500

The part of the umbra that strikes Earth never exceeds more than several hundred km across.

What is the result of the moon's umbra being too small to make a large shadow on Earth's surface?

500

A counter clockwise revolution of the moon around the sun, where the sun strikes the moon at varying degrees. This difference in sunlight causes the following cycle: new moon, waxing crescent, 1st quarter, Waxing gibbous, Full moon, waning gibbous, 3rd quarter, waning crescent, and back to new moon.

What are all of the lunar phases?

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