Show:
Earth and the Sun
Earth's Rotation
Earth's Revolution
Earth's Seasons
Vocabulary & Facts
100

An imaginary line that divides the Northern and Southern Hemispheres.

What is the equator?

100
Another word for rotation
What is spin?
100

It takes 365 1/4 days for the Earth to complete one

What is a revolution?

100
The four seasons
What is Spring, Summer, Fall, and Winter?
100

A __________ is a day when Earth's rotation axis is the most toward or away from the Sun

What is solstice?

200

Regions near the poles receive _______ energy than regions near the equator. 

What is less?

200
It takes 24 for hours for the Earth to do this
What is rotate?
200

The path a revolving object follows. 

What is orbit?

200
Occurs in September and March
What is equinox?
200

This occurs every four years in February. 

What is a leap year?

300

It is colder in these regions of the Earth.

What is the North and South Pole?

300
Rotation is the reason we have...
What is day and night?
300
This keeps the Earth orbiting around the Sun
What is gravitational pull?
300
The season when Earth's tilt is away from the Sun
What is winter solstice?
300
The Earth is titled _______ degrees. 

What is 23.5?

400

A small part of the Sun's energy reaches Earth as 

What is light and thermal energy?

400

The Earth is always...

What is tilted?

400
Earth's revolution is the reason we have...
What are seasons?
400
Occurs when Earth's tilt is towards the Sun
What is Summer solstice?
400

In the Sun, atoms combine during ______________ producing huge amounts of energy. 

What is nuclear fusion?

500

The law of universal gravitation states that the pull of gravity depends on the masses of the objects and the __________ between them. 

What is distance?

500
The direction that the Earth spins
What is counterclockwise?
500
The direction that the Earth revolves around the Sun
What is counterclockwise?
500
Time of the year when both hemispheres experience the same amount sunlight
What is equinox?
500

The ________ diameter is more than 100 times greater than Earth's diameter.

What is the Sun's?