Earth's Sphere
Solar System
Surface of Mars
100
This is the solid, rocky outer layer of Earth where mountains, soil, and minerals are found.
What is the Geosphere?
100
This is the largest object in the solar system.
What is the Sun?
100
These locations on Mars are known to have frozen water.
What are the poles?
200
This sphere represents all the water on Earth, including oceans, lakes, and rivers.
What is the Hydrosphere?
200
This type of planet has a rocky surface that you can stand on.
What is a rocky planet?
200
Since Mars has a rocky surface, that means it has this sphere.
What is a Geosphere?
300
This word names the layer of gases that surrounds Earth.
What is the Atmosphere?
300
This is the only habitable planet in our solar system that we know of.
What is Earth?
300
The name of this landform may prove that Mars once had flowing water or lava.
What is a channel?
400
This term includes all living things on Earth, from bacteria to blue whales.
What is the Biosphere?
400
This is the closest planet to the sun.
What is Mercury?
400
The volcanoes on Mars may prove that this geologic process happened at one point.
What is flowing lava?