H 2 O
Earth's Surface
Landforms
Earth's Layers
Rocks
100
How much of Earth is covered with water?
3/4 or 75%
100
How much of Earth's surface is land?
1/4 or 25%
100
What is a landform?
part of Earth's surface that has a shape and was made naturally
100
How many layers are there?
3
100
Material that has never been alive
mineral
200
What are the 2 kinds of water?
Salt water and fresh water
200
What is it called when big rocks break into smaller rocks?
weathering
200
High landform with steep sides
Mountain
200
What is the thinnest layer?
crust
200
Name a slow change to Earth
moving water, glaciers
300
How do we use fresh water? (give 2 answers)
cooking, cleaning, drinking
300
What is it when small rocks are carried away?
erosion
300
Low area between mountains
Valley
300
What is the thickest layer?
mantle
300
What is a fast change to Earth's surface?
Earthquake, volcano
400
Why is most fresh water unavailable to us?
It is frozen, or in ground water
400
What are the causes of erosion?
wind, water, gravity, glaciers
400
Flat landform
Plain
400
The deepest layer of Earth.
Core
400
What are the remains of a plant or animal?
fossil
500
Of all the water on Earth, how much is available for us to use?
only 1%
500
What are the causes of weathering?
water, wind, ice, plant roots, gravity
500
Flat landform that has steep sides
plateau
500
What happens as you go towards the center of Earth?
Gets hotter
500
How are rocks formed?
melted rock hardens, small bits of rock are pressed together, heat and pressure
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