What are the layers of the earth?
crust, mantle, outer core, inner core
What is the crust?
The outer layer and the thinnest
What includes the crust?
The ocean floor and continental crust
The Crust is made up from?
Silica and alumina
What is the second layer?
Mantle
How is the mantle?
The thickest layer
The mantle is made up from?
Silicate rocks with more magnesium and iron
What is the third layer?
Outer core
The outer core is made up from..
Iron and Nickel
The metals of the outer core are...
Liquid
The outer core creates...
The magnetic field
What does the magnetic field protect us from?
Solar wind
What are the tectonic plates?
The combination between the crust and the outer mantle
What is another name for tectonic plates?
Lithosphere
What are the two movements a tectonic plate can do?
Fault and earthquake
What is a fault?
When two plates touch each other
What is an earthquake?
When plates bump up against each other
What is the fourth layer?
The inner core
What is the inner core made up from?
Iron and nickel
In the inner core, the metal are...
Solid
The inner core is under immense...
Pressure
The inner core is the .... Part of the earth
Hottest
The earth is made up from
Layers and rocks
What are minerals?
Inorganic natural substances
What are the properties of a mineral?
Structure, lustre, hardness and colour
How can be the structure of a mineral?
Regular (pyrite) or irregular (gold)
How can be the lustre of a mineral?
Metallic (galena) or silky (talc)
How can be the hardness of a mineral?
Hard (diamond) or soft (gypsum)
What are rocks?
Inorganic natural substances made from minerals
What are the three types of rocks?
sedimentary, igneous, metamorphic
What are sedimentary rocks?
Transported pieces of rocks that have become compacted or the lefts from living things
What are igneous rocks?
When magma cools and solidifies
What are metamorphic rocks?
any rock that forms from another rock as a result of changes in heat or pressure