The Moon
Earth
The Sun
100

The number of days it takes for the moon to make one complete revolution of the Earth.

What is 29.5 days?

100

The most abundant resource on the Earth.

What is liquid water?

100

The day when the Sun is directly overhead the equator.

What is an equinox?

200

Increases in illumination.

What is the Waxing Gibbous?

200

The point where the Earth bulges.

What is the equator?

200

Gives 12 hours of sunlight.

What are the Spring Equinox and the Autumn Equinox?

300

Decreases in illumination

What is the Waning Crescent?

300

Reason for the season on Earth.

What is a tilted axis?

300

Gives more than 12 hours of sunlight.

What is the Summer Solstice?

400

Needs the moon for stability

What is the Earth's wobble?

400

The cause of leap years adding an extra day to the month of February.

What is the Earth takes longer than 365 days to orbit the sun?

400

Gives less than 12 hours of sunlight.

What is the Winter Solstice?

500

Causes the moon to appear very bright in the night sky

What is reflected light?

500

TRUE or FALSE:

The Earth has a synchronous rotation.

What is FALSE?

500

The point in a planet's orbit where it is closest to the Sun.

What is perihelion?

M
e
n
u