Earth
Sun
Misc.
This and That
Vocabulary
100
This causes the Earth's seasons.
What is the tilt of the Earth?
100
The word "solar" refers to this object.
What is the "sun"?
100

The phenomenon of the sunset aligning with a New York city skyline.

What is "Manhattanhenge"?

100
This keeps the Earth and moon in their orbits.
What is "gravity"?
100
This word describes the Earth spinning continuously.
What is "rotating"?
200
The shape of the Earth
What is a "sphere"?
200
The sun is a big fiery ball of gas called this.
What is a "star"?
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?
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
The sun rises in this direction.
What is the "east"?
300

The reason it is colder in winter than in summer.

What is indirect sunlight?

300
This object is used to study far away objects in the sky.
What is a "telescope"?
300

The imaginary line vertically around the middle of the Earth.

What is the "prime meridian"?

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

This is the longest day of the year.

What is June 21.

400
The sun appears higher in the sky during this time of year because of the tilt of the earth.
What is "summer"?
400

Stars in a specific formation, typically seen once per year.

What is a "constellation"?

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 summer.
What is "directly"?
500

This is the name for the longest day of the year.

What is the summer solstice?

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 Year Day"?
500

This refers to the angle of the Sun in the sky.

What is "solar elevation"?

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