Earth Science, Chapter 2, Earth as a System, Review

The earth's core is best know as the layer that....

• we live on.
• is made up of molten lava.
• contains all the gases we breathe.
• is the solid center of the earth.

The earth's mantle is best know as the layer that....

• we live on.
• is made up of molten lava.
• contains all the gases we breathe.
• is the solid center of the earth.

Which of the following is one of the features/facts of the earth?

• It was formed about 4.6 billion years ago.
• The earth is the center of our solar system.
• It is a perfectly round sphere.
• There is more land than water on the surface of the earth.

Which of the following is one of the features/facts of the earth?

• It is the 3rd planet from the sun.
• It is the 5th planet from the sun.
• It contains no gravity.
• It takes 3 days to orbit the sun.

The force of attraction that exists between all matter in the universe is called?

• Gravity
• Inertia
• Magnetism
• Centripetal Force

The layer that contains a mixture of gases is called?

• Atmosphere
• Hydrosphere
• Geosphere
• Biosphere

The layer that contains the solid earth (rocks and land) is called?

• Atmosphere
• Hydrosphere
• Geosphere
• Biosphere

The layer that contains all of the life that exists is called?

• Atmosphere
• Hydrosphere
• Geosphere
• Biosphere

What kind of system is it when heat and energy ONLY enters and leaves?

• Open System
• Closed System
• Ecosystem
• Biosystem

TRUE OR FALSE: Earth is essentially a really large magnet.

• TRUE
• FALSE