Earth

the outermost layer of the earth (where we live) it is made of soil and rock

• crust

• mantle

• outer core

• inner core

2nd level of the earth, 2,850 km thick. the rock is close to melting (molten rock) so it acts as a thick liquid

• crust

• mantle

• outer core

• inner core

3rd level, made up of liquid (molten=melted) iron and nickel

• crust

• mantle

• outer core

• inner core

inner most layer made up of solid iron and nickel

• crust

• mantle

• outer core

• inner core

what happens as you go towards the earth's center

• temperature and pressure increases

• temperature and pressure decreases

• it does not change

which of these is the thinnest

• crust

• mantle

• outer core

• inner core

what is the relationship between the earth's layers

• the hottest layers are closest to the core

• the liquid layers are closest to the crust

• the lightest layers are closest to the core

• the more metallic layers are closest to the crust

pick the correct diagram

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the diagrams show how a river can cause the erosion of land. Which sequence of letters best shows how the river has aged from youngest to oldest

• c, a, b, d

• b, a, c, d

• a, d, b, c

• d, a, b, c

the remains of an animal or plant preserved from an earlier era inside a rock or other geologic deposit

• fossils

• pangea

• non of the above

• all of the above