Solar System
Motions of Earth
Moon Formation
Phases of the Moon
Tides and Eclipses
100

Cloud of dust and gas that are the remains of an exploded star.

What is a Nebula?

100

The spinning motion of Earth on its axis.

What is Rotation?

100

The most accepted theory name for how the Moon formed.

What is The Giant Impact Theory?

100

The Moon takes about this long to complete one orbit of Earth.

What is 1 month?

100

Every shoreline on Earth experiences this many high tides each day.

What is 2 high tides?

200

Most accepted theory name for how Solar System formed.

What is the Nebular Theory?

200

The motion of Earth around the Sun.

What is Revolution?

200

The name of the planetissimal that slammed into Earth to cause the Moon's formation.

What is Theia?

200

When the lighted side of the Moon becomes more visible over several nights, it is said to be __.

What is Waxing?

200

The other cause for high tides besides the Moon and Sun's gravity?

What is Centrifugal Force of the Earth?

300

The planet closest to the Sun.

What is Mercury?

300

Earth's rotation is the cause of this phenomenon on Earth.

What is Day and Night?

300

The pieces of the planetissimal and Earth that got ejected into space came together because of this force.

What is Gravity?

300

The phase when none of the lighted side of the Moon is visible from Earth.

What is a New Moon?

300

The name for the special type of tide that happens when high tides are a little lower, and low tides are a little higher.

What are Neap Tides?

400

The closest Gas Giant to Earth.

What is Jupiter?

400

When neither hemisphere of Earth is tilted towards the Sun, Earth experiences these two seasons.

What is Fall and Spring?

400

The theory name for the Moon's formation described as the Moon coming from somewhere else in the Solar System and being caught by Earth's gravity.

What is The Capture Theory?

400

The Moon is said to be _ when the lighted side of the Moon is on the left side when viewed from Earth.

What is Waning?

400

This is what happens when one object passes into the shadow of another object. 

What is an Eclipse?

500

Inner planets are dense with rocky surfaces and are known as these types of planets because of this.

What are Terrestrial Planets?

500

The two things about Earth that cause the seasons.

What are tilt and revolution?

500

Earth is about this many years old according to science investigations.

What is 4.5 Billion years old?

500

The phase name for when most, but not all of the lighted side of the Moon is visible from Earth.

What is Gibbous?

500

When a part of the Earth passes into the shadow of the Moon, this occurs.

What is a Solar Eclipse?