Moon Phases & Eclipses
Earth, Sun & Seasons
Gravity & Orbits
Solar System & Planets
Beyond the Planets (Stars, Moonrise, Outer Regions)
100

What does the Moon do around Earth?

Revolve

100

How long does Earth take to rotate once?

24 hours

100

What force keeps planets in orbit around the Sun?

Gravity

100

What is the largest planet?

Jupiter

100

The Sun is a star or a planet?

Star

200

What causes the phases of the Moon?

The Moon’s position and how sunlight hits it

200

How long does Earth take to revolve around the Sun?

365 days

200

Gravity depends on what two things?

Mass and distance

200

What is the smallest planet?

Mercury

200

How much later does the Moon rise each day (about)?

50 minutes

300

What type of eclipse happens during the day?

Solar Eclipse
300

What is Earth’s tilt?

23.5 degrees

300

What object has the strongest gravity in our solar system?

The Sun

300

What type of planets are Jupiter, Saturn, Uranus, and Neptune?

Gas giants

300

Are blue stars hotter or colder than red stars?

Hotter

400

What are the two main parts of a shadow during an eclipse?

Umbra and penumbra

400

What is an equinox?

Day and night are equal

400

What is the path a planet follows called?

Orbit

400

What galaxy is our solar system part of?

Milky Way

400

Where is the Kuiper Belt located?

Beyond Neptune

500

Why don’t eclipses happen every month?

The Moon’s orbit is tilted

500

Why does the Northern Hemisphere experience summer?

It is tilted toward the Sun and receives more direct sunlight

500

State the Law of Universal Gravitation

All objects in the universe pull on each other through gravity 

500

Which space object burns up in our atmosphere?

Meteors

500

What is the Oort Cloud and how is it shaped?

A distant spherical region of icy objects