6th Grade Science Spring Final Review

What is the solid outermost layer of the Earth called?

• Crust

• Mantle

• Core

• Lithosphere

Which Earth layer is composed of solid iron and nickel?

• Inner core

• Mantle

• Crust

• Outer core

Which layer is made of liquid iron?

• Outer core

• Crust

• Mantle

• Inner core

Which layer is the thickest in Earth’s structure?

• Mantle

• Crust

• Inner core

• Outer core

What is the thinnest layer of the Earth?

(a)  

What two elements are most commonly found in the core?

• Iron and nickel

• Oxygen and silicon

• Carbon and hydrogen

• Magnesium and calcium

Why do tectonic plates move?

Tags

NGSS.MS-ESS2-3

Which two processes form sedimentary rock from sediments?

• Erosion and melting

• Compaction and cementation

• Weathering and evaporation

• Cooling and solidification

What turns sedimentary rock into metamorphic rock?

• Heat and pressure

• Erosion

• Weathering

• Compaction

How is igneous rock formed?

• By the cooling and solidification of magma or lava

• By the compression of sediments

• By the accumulation of plant material

• By the evaporation of water