The Sky from the Earth
Earth in Space
Gravity in Motion
Phases and Eclipses
Tides
100

The Ursa Minor is known as this.

What is the little dipper?

100

This is the imaginary line that passes through the Earth's center. It runs between the North and South Poles.

What is the axis?

100

The force that keeps the Earth in orbit.

What is gravity?

100

The different shapes of the moon you see from Earth.

What is a moon phase?

100

The rise and fall of ocean water.

What is a tide?

200

The sunset is seen from Earth going in this direction:

What is the west.

200

When the Earth moves on its North and South Poles.

What is rotation?

200

The amount of matter in an object.

What is mass?

200

The side of the moon that we will not ever see on Earth. 

What is the dark side of the moon?

200

The Earth's gravity causes a pull on the ocean water. This pull causes the highest high tides and the lowest low tides.

What is a spring tide?

300

An object that orbits the sun, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.

What is a planet.

300

The movement of the Earth while moving around the sun.

What is revolution?

300

The measurement of gravity in an object. Often measured in Newtons. 

What is gravity or weight?

300

During a solar eclipse, this phase of the moon makes it possible for Earth to see the sun completely covered for a moment in time. 

What is a new moon.
300

During this tide, the tides are level and have the least differences between a low tide and a high tide. 

What is a neap tide?

400

These are sudden bright burst within the sky. They often referred to as "shooting stars".

What is a comet?

400

The system of organizing time that defines the beginning, length and divisions of the year. 

What is a calendar?

400

An object's resistance to change in its motion. 

What is inertia?

400

During a lunar eclipse, this phase of the moon is necessary to make a lunar eclipse occur. 

What is a full moon?

400

During a full moon, the tide is at its highest tide. This tide is often called by this name.

What is a Spring Tide?

500

A body that orbits a planet.

What is a satellite?

500

The time during the Earth's orbit where the sun is closest to the tropic of cancer.

What is the summer solstice?

500
An object in motion will remain in motion. An object at rest will remain at rest.

What is Newton's First Law of Motion?

500

The darkest shadow cast due to the moon's shadow.

What is an umbra?

500

 The gravitational pull from the sun and the moon control the tides. This is the force that affects these tide movements. 

What is gravity?

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