Earth's Rotation
Earth's Revolution
History
Seasons
Lines and Zones
100

This is the time of day it is when your part of the Earth is turned away from the Sun.

What is night time?

100

This is the path the Earth follows around the Sun.

What is an orbit?

100
Babylonian astronomers tracked the path of the stars from these temple towers.

What are ziggurats?

100

This is the name of the invisible line the Earth is tilted on. 

What is axis?

100

This imaginary line divides Earth into Northern and Southern Hemispheres.

What is the Equator?

200

This daily motion of the Earth causes day and night.

What is rotation?

200

It takes the Earth this many days to complete one revolution around the Sun.

What is 365 days?

200

Before clocks, people used this type of device to help keep track of time.

What is a sun dial?

200

When it is winter in the Northern Hemisphere, it is this season in the Southern Hemisphere.

What is summer?

200

These are the imaginary lines above and below the Equator.

What are the Tropic of Cancer and the Tropic of Capricorn?

300

The Earth rotates in this direction when viewed from above the North Pole.

What is counterclockwise? 

300

This is the shape of the Earth's orbit around the Sun.

What is an ellipse or oval?

300

This Italian scientist used one of the first telescopes to see mountains on the Moon and moons around Jupiter.

Who is Galileo?

300

The Northern Hemisphere has the longest day of the year during this solstice.

What is summer solstice?

300

Sunlight that hits Earth directly makes this zone hotter.

What is the torrid zone?

400

The Earth completes one full rotation in this many hours.

What is 24 hours?

400

When the Northern Hemisphere is tilted toward the Sun, it is this season there.

What is summer?

400

This ancient civilization worshipped the Sun god, Ra. 

What is Egypt?

400

This occurs when day and night are almost equal everywhere on Earth.

What is an equinox?

400

The area around the North Pole that has extreme daylight or darkness are called this.

What is the Arctic Circle?

500

The Sun appears to rise from this direction.

What is the east?
500

This special kind of year happens every four revolutions around the Sun. 

What is a leap year?

500

Before Copernicus, most people believed the Sun revolved around the Earth. What word describes his idea that the Earth revolves around the Sun?

What is heliocentrism?

500

The tilt of the Earth's axis is how many degrees?

What is 23.5?
500

These are the three main temperature zones on the planet. 

What are torrid, temperate, and frigid?

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