How much of the Earth's surface is covered with water?
How much of the water on Earth is salt water?
97%
A ________ is part on the Earth's surface that has a certain shape and is formed naturally.
landform
A _______ is a raised part of the land, usually with steep sides that rises above the area around it.
mountain
A _______ is a large land area that is mostly flat
Plain
A ________ is a flat area of land that is higher than the land around it.
plateau
The middle layer of the Earth which is the thickest layer and is made of rock
Mantle
The outside layer of the Earth where all living things are live is called
Crust
_______ rocks form when sediment or small bits of sand harden into small thin layers.
Sedimentary Rocks
A ________ is formed when a river or stream cuts through the land over a long period of time.
Canyon
___________ rocks form when melted rock from inside the Earth cools and hardens.
Igneous Rock
______ rock form when heat and pressure inside the Earth change other rocks
Metamorphic Rocks
True or false: The Earth's crust is thinker under land than under oceans?
True
A ______ is a material that is found in nature but has never been alive
mineral
A ______ is a crack in the Earth's crust where pressure can build up and cause earthquakes
fault
A _____ is what remains of a once living plant or animal
fossil
Fast changes to the Earth's landforms most likely occur from
earthquakes
The low area of land between mountains or hills or other high areas.
Valley
loose material that covers much of the Earth's surface
soil
An opening in the Earth's crust through which hot ash, gasses and melted rock move up from deep inside the Earth to the surface.
Volcano
The decayed remains of plants and animals that is found in soil.
Humus
The breaking up or wearing away of rock
weathering
The Earth's deep innermost layer
core
What are the names of the three layers of soil
topsoil, subsoil, bedrock
weathering