Earth Materials Practice

The thinnest layer of the Earth is called the...

• Crust
• Mantle
• Core
• Asthenosphere

All life on Earth is found in and above the...

• Crust
• Mantle
• Inner Core
• Outer Core

Which of the following is an OUTER layer of Earth?

• Mantle
• Hydrosphere
• Core
• Asthenosphere

Which layer of the Earth is a brittle solid that can easily crack?

• Lithosphere
• Asthenosphere
• Biosphere

Which layer of the earth sits underneath the lithosphere, and flows like silly putty?

• Core
• Atmosphere
• Asthenosphere
• Rocks

How might the HYDROSPHERE affect the LITHOSPHERE?

• Water can cause weathering and erosion, breaking apart rocks.
• Animals eat plants, which helps them do cellular respiration.
• Sunshine causes rocks to undergo photosynthesis, so they can grow.
• Water washes over rocks, which causes volcanos to erupt. 

How might the ATMOSPHERE affect the LITHOSPHERE? 

• Rocks get broken up by plant roots.
• Wind causes weathering to large rocks, breaking them into smaller pieces.
• Wind causes ocean currents to move water around the globe.
• Humans mine rocks for their valuable ores such as iron or gold.

When magma or lava cool, it forms ______ rock.

• Igneous
• Sedimentary
• Metamorphic

Which image shows lava? 

• A
• B
• C
• D

Extrusive igneous rocks are formed...

• from magma that cools below Earth's surface.
• from lava that erupts above Earth's surface.
• from rocks that were crushed into fine pieces.