Layers of the Earth
Which layer of the Earth do humans live on?
The CRUST
How are minerals and rocks different?
Minerals are the same on the outside and inside rocks are not
What is a Plain?
A plain is a large flat area of Earth's surface (like a farm)
What is a fossil?
A fossil is the remains of a once living plant or animal.
A human can go without food for about a month, How long can a human go without water?
About a week (BUT NOT RECOMMENDED)
What is the hottest layer of the Earth?
The inner core
What is the hardest mineral on the Earth?
Diamonds!!!!
What is a Canyon?
A Canyon is a deep valley that forms when rivers cut through layers of rock.
How does Metamorpohic rock form?
Metamorphic rock forms when other rocks are changed by heat and pressure.
What is the scale used to measure the hardness of minerals?
The Mohs scale
What is the core of the Earth made of?
Molten metals (Nickel and Iron)
When melted rock cools or hardens it becomes known as ?
Igneous rock!
What is a PLateau?
A Plateau is a large flat land area that is raised
How does a Sedimentary rock form?
A sedimentary rock forms when sediment, or sand and small bits of stone are cemented or glued together.
What Percent of Earth's water is fresh water?
How much of it do we actually use?
Only 3% of Earth's water is fresh water and we can only use about 1% of that!
What is the biggest layer of the Earth?
The Mantle
When a rock is changed by heat and pressure it is what type of rock
Metamorphic rock
What is a Valley?
A Valley is a low area surrounded by mountains
How does an Igneous rock form?
A igneous rock forms when melted rock from inside Earth cools and hardens.
What percent of water on Earth is salt water?
97%
What are the four layers of the Earth?
The CRUST, The MANTLE, OUTER AND INNER CORES!
A type of rock formed mostly from sand and other material that is glued or stuck together?
Sedimentary rock
What is a landform?
A landform is a part of Earths surface that has a certain shape and is formed naturally!
What is a mineral?
A mineral is a material that is found in nature and that has never been alive.
How much of the Earth is covered in water?
About 75% or 3/4 of the Earth is covered in water