Moon Phases
Celestial Bodies
Solar System
Fun Facts
100

How long does it take to cycle through the phases of the moon?

About 28.5 days

100

a region in the Solar System between the orbits of the planets Jupiter and Mars that contains a great many solid, irregularly shaped bodies.

Asteroid Belt

100

What is the heliocentric model of the solar system?

Planets revolve around the sun.

100

How many Earths could fit inside the Sun – and the Sun is considered an average-size star?

1 million

200

What phases comes after a new moon?

Waxing crescent

200

A region of icy objects beyond the orbit of Neptune.

Kuiper Belt

200

What is the geocentric model of the solar system?

Planets revolve around Earth
200

What other planet may have running water?

Mars

300

What phase of the moon comes right after a full moon?

Waning gibbous

300

What is one of the three requirements to be a planet?

Answers will vary.

300

Who created the model of the solar system we use today?

Johannes Kepler

300

Name one planet that has no solid surface. You wouldn't be able to walk on them!

Jupiter, Saturn, Uranus or Neptune

400

How can you tell if the moon is waxing or waning?

If the right or left side is illuminated.

400

What is a comet?

cosmic snowballs of frozen gases, rock, and dust that orbit the Sun

400

How many planets are in our solar system?

8

400

How long would it take to fly a plane to Pluto?

800 years

500

How long does it take the moon to rotate around the Earth?

About 27 days

500

Why do we see different constellations during different times of year?

The Earth's orbit around the sun and rotation on its axis.

500

Why are models of our solar system often incorrect?

They fail to show scale and distance.

500

About how often does an asteroid the size of a car enters Earth’s atmosphere? – but it burns up before it reaches us. Phew!

About once a year!