🌍 Earth's Layers
What is the name of the layer we live on?
The crust.
What do we call all the water on Earth?
The hydrosphere.
What is a very tall natural area of land called?
A mountain.
Which layer is at the very center of Earth?
The inner core.
What force pulls objects toward Earth?
Gravity.
Which layer is the thickest part of Earth?
The mantle.
What system includes all living things?
The biosphere.
What is a large, flat area of land called?
A plain.
What two metals make up most of Earth's core?
Iron and nickel.
What keeps the Moon orbiting Earth?
Gravity.
What is the name of Earth's very center?
The inner core.
What is the layer of gases surrounding Earth called?
The atmosphere.
What do we call the difference between the highest and lowest elevations in an area?
Relief.
Is the outer core solid or liquid?
Liquid.
What are Earth's north and south magnetic poles associated with?
Earth's magnetic field.
Which layer is made of solid rock and includes the crust and uppermost mantle?
The lithosphere.
Which two systems interact when water evaporates into the air?
The hydrosphere and atmosphere.
Which usually has greater relief: a mountain range or a coastal plain?
A mountain range.
Why is the inner core solid even though it is extremely hot?
The enormous pressure keeps it solid.
What instrument can help you find directions using Earth's magnetic field?
A compass.
What is the difference between the inner core and outer core?
The inner core is solid, while the outer core is liquid.
A plant takes in water and nutrients from soil. Which two Earth systems interact?
The biosphere and geosphere.
What is the difference between weathering and erosion?
Weathering breaks down rock; erosion moves the broken material.
How does the movement of liquid metal in the outer core help Earth?
It generates Earth's magnetic field.
Why do objects fall toward the ground when dropped?
Earth's gravity pulls them toward its center.