1.2 The Geosphere - Earth's Layers

What are the materials that make up the geosphere?

• Rocks
• Minerals
• Soil
• All of the above

What type of rock is in the continental crust?

• Basalt
• Only igneous
• Only metamorphic
• Igneous, metamorphic, sedimentary

What is the asthenosphere?

• Part of the core
• Part of the inner core
• The crust and the uppermost mantle form a brittle outer layer
• The weak, partially melted layer of the mantle

What are minerals?

• Naturally occurring inorganic solids with a definite chemical composition
• Naturally occurring solid composed of minerals and other materials
• Loose, weathered material in which plants grow

The thinnest layer is the

• Crust
• Mantle
• Core
• Outer core

What causes Earth to have layers?

• Density
• The layers
• Asthenosphere
• Geosphere

The core is made mostly of

• Oxygen
• Aluminum silicate
• Rock
• Iron

Which of Earth’s layers is the most dense?

• They are all the same density
• The inner core
• The mantle
• The outer core

The largest of Earth’s layers is

• The inner core
• The crust
• The mantle
• They are all the same

The magnetic force on Earth is created by

• Oceanic crust
• Continental crust
• Lithosphere
• The core