Layers of the Atmosphere
Weather and Clouds
The Moon
Phases of the Moon
Eclipses
200

These two gases make up most of the atmosphere.

What are oxygen and nitrogen?

200

This low level cloud means layer or sheet in Latin.

What is stratus?

200

This is the terrain-based after-effect of a lunar impact.

What is a crater?

200

This phase of the moon is when a small "crescent" can be seen illuminated on the left side of the moon.

What is the waning crescent moon?

200

This is the larger and lighter shadow formed during an eclipse.

What is the penumbra?

400

Weather occurs in this layer of the atmosphere.

What is the troposphere?

400

These clouds resemble curls of hair.

What are cirrus clouds?

400

These are darker regions "seen" on the lunar surface. Keep looking. You won't "see" any water here.

What are maria?

400

This phase of the moon occurs when only the right side of it is illuminated.

What is the first quarter moon?

400

These are the main two types of eclipses.

What are solar and lunar?

600

This layer of the atmosphere contains the ozone layer.

What is the stratosphere?

600

This type of cloud means heap or pile in Latin.

What are cumulus clouds?

600

Compared to the Earth, this is the strength of the moon's gravity.

What is one sixth of Earth's gravity?

600

This phase of the moon can be described as "the moon is gone, it is not there..." Not really...

What is the new moon?

600

This type of eclipse will permit the sun's corona to be visible.

What is a total solar eclipse?

800

This is the outermost layer of the atmosphere.

What is the exosphere?

800

This type of cloud will most likely produce rain.

What are nimbus clouds?

800

This extrusive igneous rock formed from rapid cooling is a major component of the moon.

What is basalt?

800

This phase of the moon occurs when 100% of it is fully illuminated.

What is the full moon?

800

This is the smaller and darker shadow formed during an eclipse.

What is the umbra?

1000

This layer of the atmosphere contains the ionosphere.

What is the thermosphere?

1000

These two types of clouds are low level clouds.

What are stratus and cumulus?

1000

Lunar soil is also known as this. It is formed over time from the impacts of objects hitting the lunar surface.

What is regolith?

1000

This phase of the moon occurs when only the left side of it is illuminated.

What is the last (or third) quarter moon?

1000

This type of eclipse will form when the moon doesn't quite cover the entire sun.

What is a partial eclipse or annular (ring) eclipse?

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