Planets of the Solar System: Earth and Mars

Earth is the _____ planet from the sun.

The Earth's core is made of solid _____.

• copper

• steel

• gold

• iron

_____ gives Mars its reddish appearance.

Mars has the _____ volcano in the solar system.

• widest

• shortest

• hottest

• largest

The Valles Marineris is the _____ canyon in the solar system.

• deepest

• shallowest

• widest

• narrowest

The hottest ever temperature recorded on Earth was _____ degrees Celsius.

• 0.567

• 5.67

• 56.7

• 567

What causes the temperature on Mars to be colder than on Earth?

• A) Its thinner atmosphere.

• B) Its distance from the sun.

• Both A and B.

Earth has a thinner atmosphere than Mars.

• True

• False

There is no water on Mars.

• True

• False

Both Earth and Mars have extreme temperature ranges that make them difficult to inhabit without the proper equipment.

• True

• False