Venus
Mars
Jupiter
Saturn
Neptune
100

What is Venus sometimes called?

Earth's twin

100
What is Mars sometimes called?

The Red Planet

100

How many moons does Jupiter have?

79

100

What are Saturn's rings made of?

Ice and rock

100

How many rings does Neptune have?

Six

200

Venus is the _____ planet in our Solar System?

Hottest

200

Why is Mars red?

The rusty iron in the ground

200

What is the Great Red Spot?

A giant storm bigger than Earth that has raged for hundreds of years.

200

What is Saturn mostly made of?

Hydrogen and helium

200

When was Neptune first confirmed through a telescope?

1846

300

What is Venus' atmosphere full of?

Carbon dioxide

300

How long does a summer on Mars last?

Six months

300

What do some of Jupiter's moons have beneath their crusts?

Oceans

300

Saturn is the only planet in the solar system that is less dense than ______?

Water
300

What gives Neptune its blue color?

Methane

400

On Venus, the Sun rises every ____ Earth days.

117

400

What are the names of Mars' two moons?

Phobos and Deimos

400

How long does a day last on Jupiter?

10 hours

400

What does Saturn's yellow color come from?

Ammonia crystals

400

What is special about Neptune's moon Triton?

It has geysers

500

What is unusual about the way Venus spins?

The opposite direction of most other planets

500

Mars has the tallest volcano in the solar system. What is it called?

Olympus Mons (three times as tall as Mt. Everest)

500

Jupiter is large enough to hold more than ____ Earths?

1300

500

How many moons does Saturn have (confirmed and unconfirmed)?

82

500

Neptune's magnetic field is how many times mightier than Earth's?

27 times mightier