Moon Phases A
Seasons A
Eclipse
Moon Phases B
Seasons B
100

When half of the surface of the moon is illuminated by sunlight, appearing as a full circle in the sky.

What is a full moon?

100

This is the season in the northern hemisphere when it is spring in the southern hemisphere.

What is autumn/fall?

100

This type of eclipse happens when the moon is directly between the Earth and sun, blocking sunlight from reaching Earth.

What is solar eclipse?

100

Since the moon does not make its own light, this is the light are we really seeing when we see the moon.

What is (reflected) sunlight?

100
This is the season in the southern hemisphere when it is summer in the northern hemisphere.

What is winter?

200

When the moon is not visible from the Earth because all of the sunlight is on the far side of the moon.

What is a new moon?

200

The type of event that occurs twice a year-once in the fall and once in the spring-when the sunlight is equal between the northern and southern hemispheres.

What is an equinox?

200

This type of eclipse happens when the Earth is directly between the moon and sun, resulting in the moon becoming completely dark.

What is lunar eclipse?

200

The name of the moon phase where the moon appears as a semi-circle in the sky.

What is a quarter moon?

200

When there is more direct sunlight in southern hemisphere, where on Earth is the sunlight less direct?

Where is the northern hemisphere?

300

This describes the half of the moon cycle where more of the moon is visible each night.

What is waxing?

300

The autumnal equinox occurs on approximately the 22nd of this month in the northern hemisphere.

When is September?

300

This type of moon is different from a lunar eclipse. During a lunar eclipse, the Earth is between the moon and sun. During this type of moon, the moon is between the sun and Earth.

What is new moon?

300

The one-word term that describes a moon that appears to be shrinking each night.

What is waning?

300

This type of sunlight causes more heating of the Earth's surface, leading to summer in the hemisphere where there is more of it.

What is direct sunlight?

400

This describes the shape of the moon when it is between a quarter moon and a full moon.

What is gibbous?

400

This feature of Earth's axis is the primary reason for the seasons because it causes the sunlight to unevenly strike the northern and southern hemispheres for most of the year.

What is tilt?

400

This is the darkest part of the shadow during an eclipse.

What is the umbra?

400

The one-word term to describe the shape of the moon between the last quarter and the new moon and between the new moon and the first quarter.

What is crescent?

400

This is the term that means spring, often used to describe one of the equinoxes.

What is vernal?

500

This science term (two words) describes the moon two nights before a new moon.

What is waning crescent?

500

The event that happens on June 21st in the northern hemisphere and marks the longest day of the year.

What is summer solstice?

500

This is the partial shadow portion of an eclipse.

What is the penumbra?

500

This science term (two words) describes the moon on the night before the full moon.

What is waxing gibbous?

500

The event that occurs on December 21 and is the longest night in the northern hemisphere.

What is winter solstice?