Science: Chapter 2 Lesson 2

The layer of the Earth made of solid metal is the 
______________________

• inner core
• outer core
• mantle
• crust

A layer of solid rock that forms the Earth's outer "skin"
includes both dry land and ocean floor

• inner core
• outer core
• mantle
• crust

The uppermost part is called the
lithosphere--rigid layer
asthenosphere--softer layer; hotter and under increased pressure

• inner core
• outer core
• mantle
• crust

Land under the ocean is called 

• sand
• continental crust
• oceanic crust
• there is no land under the ocean

Which layer of the Earth's interior creates Earth's magnetic field?

• inner core
• outer core
• mantle
• crust

The Earth system made mainly of surface water is called the 

• biosphere
• hydrosphere
• geosphere
• atmosphere

Which is part of the atmosphere?

• a rock
• a tree
• oxygen
• the ocean

Plants, humans, and animals are part of the 

• biosphere
• hydrosphere
• geosphere
• atmosphere

True or False
The Earth is less dense at the core.

• True
• False

True or False
Gravity played no part in the creation of the solar system.

• True
• False