The Inner Planets
Earth
Moon
Mars
The Gas Giants
100

The planet closest to the Sun

What is Mercury?

100

The outermost layer

What is the crust?

100

Covered by lava flows

What are the Mare?

100

NASA's most recent Martian rover

What is Perseverance?

100

Rings visible from Earth

What is Saturn?

200

This planet is a greenhouse world

What is Venus?

200

Responsible for its magnetic field 

What are the inner and outer cores?

200

Covers the highlands

What are the craters?

200

This inner layer of the planet is missing

What is a liquid outer core?

200

Gas Giants are made mostly of

What is hydrogen?

300

Nicknamed the red planet

What is Mars?

300

The crust and the uppermost mantle

What is the lithosphere?

300

Soil-like material on the lunar surface

What is the regolith?

300

Might have existed on the surface

What is liquid water?

300

If you lived on this gas giant, you wouldn't have seasons. 

What is Jupiter?

400

The largest of the inner planets

What is Earth?

400

When plates shift, it causes

What are earthquakes

400

Thickest internal layer

What is the mantle?

400

Found at the poles

What is frozen carbon dioxide? 

400

About 10 hours

What is a day on the Gas Giants?

500

The inner planets are also called

What are the rocky planets

500

When one plate overrides another, it produces

What are volcanoes?

500

Only 1/6 that of the Earth

What is the lunar gravity?

500

Olympus Mons

What is the largest volcano? 

500

Deep within the Gas Giants, hydrogen is mostly in a _______ state.

What is metallic?