Earth
Sun
Moon
This and That
Vocabulary
100

This causes the Earth's seasons.

What is the 23.5˚ tilt of the Earth?

100
The word "solar" refers to this object.
What is the "sun"?
100

It takes this long for the moon to go completely through its phases.

What is about 29.5 days.

100
This keeps the Earth and moon in their orbits.
What is "gravity"?
100

This word describes the Earth spinning on its axis.

What is "rotating"?

200

This is how the Sun's rays hit the Earth during the northern hemisphere winter.

What is indirectly?

200

Along with indirect light, the other reason we have colder temperatures in the winter.

What are shorter days.

200
Solar refers to the sun. This term refers to the moon.
What is "lunar"?
200

It takes this long for the Earth to complete on full rotation.

What is 24 hours or 1 day?

200
This imaginary line goes from the North Pole to the South Pole of the Earth.
What is the "axis"?
300
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
300

This has nothing to do with why we have seasons on Earth.

What is the distance Earth is from the Sun?


300
During this phase of the moon, we can see no light from the moon.
What is a "new moon"?
300

The name of the days that the Earth's equator is directly lined up with the Sun.

What are the equinoxes (vernal and autumnal)?

300
This term is used to describe the phase of the moon when we see all of the lit side.
What is "full moon"?
400
When it is winter in North America, it is this in Australia.
What is "summer"?
400
This occurs when the moon moves between the sun and the Earth, blocking some the the sun's light.
What is a "solar eclipse"?
400

During this process, the moon moves through the Earth's shadow, and appears red.

What is a "lunar eclipse"?

400
The sun appears higher in the sky during this time of year because of the tilt of the earth.
What is "summer"?
400
As we see less and less of the lit part of the moon, we say that it is doing this.
What is "waning"?
500
The imaginary line horizontally around the middle of the Earth.
What is the "equator"?
500

This is how the sun's rays strike the Earth in the northern hemisphere summer.

What is directly?

500

The moon affects this part of the Earth, changing it daily on our beaches.

What are the ocean tides?

500

We have this special day every 4 years in February because it takes the Earth 365 and 1/4 days to revolve around the sun.

What is "Leap Day"?

500

The word we use to describe the first days of summer and winter.

What is the solstice?

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