Comprehensive Earth layers worksheet that combines visual learning with interactive questions to help students master the structure of our planet's interior.

Let’s go step by step through each question to make sure we get everything right.

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Q.1: Label the layers of the Earth.

Looking at the diagram (even though I can’t see it, I know the standard order from outside to inside):

From outermost to innermost:
1. Crust – the thin outer layer we live on.
2. Mantle – thick middle layer, mostly solid but can flow slowly.
3. Outer core – liquid layer made of iron and nickel.
4. Inner core – solid, hottest part, also made of iron and nickel.

So the labels from top to bottom (outer to inner) should be:
- Crust
- Mantle
- Outer core
- Inner core

*(Note: Sometimes diagrams show 5 layers if they split mantle into upper/lower or crust into continental/oceanic — but for basic worksheets, 4 is standard.)*

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Q.2: True or False

1. *The inner core is solid while the outer core is liquid.*
→ TRUE. Inner core is under so much pressure it stays solid even though it’s hot. Outer core is liquid metal.

2. *The coolest layer of the earth is mantle.*
→ FALSE. The coolest layer is the crust. Mantle is hotter than crust.

3. *There are two types of crust: continental crust and oceanic crust.*
→ TRUE. Continental is thicker and less dense; oceanic is thinner and denser.

4. *The movement of the inner core creates the movement of the Earth’s plates.*
→ FALSE. Plate movement is caused by convection currents in the mantle, not the inner core.

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Q.3: Fill in the blanks

a) *The thinnest layer of the Earth is the ______.*
→ Crust

b) *The thickest layer of the Earth is the ______.*
→ Mantle (It makes up about 84% of Earth’s volume!)

c) *The ______ is composed of the melted metals of nickel and iron.*
→ Outer core (It’s liquid, so “melted” fits.)

d) *______ is rigid outer layer that include the upper part of the mantle and the crust.*
→ Lithosphere (This is the technical term — sometimes called “rigid outer shell”)

e) *______ is plastic, flowing layer in the middle of mantle.*
→ Asthenosphere (This is the soft, squishy part of the mantle where rocks can flow slowly)

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Q.4: Which layer of the Earth is found above the mantle?

Options:
a) Outer core → below mantle
b) Inner core → deepest
c) Crust → YES! Above the mantle
d) Magma → not a layer, it’s molten rock

→ Answer: c) Crust

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Q.5: Which layer is the hottest layer of Earth?

Options:
a) Outer core → very hot, but not hottest
b) Inner core → YES! Hottest due to pressure and residual heat from formation
c) Crust → coolest
d) Mantle → hot, but cooler than core

→ Answer: b) Inner core

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Q.6: Which layer of the Earth do we live on?

We live on the surface — which is the crust.

Options:
a) Outer core → no
b) Inner core → definitely not
c) Crust → YES
d) Mantle → too deep

→ Answer: c) Crust

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Final Answer:

Q.1: From outer to inner: Crust, Mantle, Outer core, Inner core
Q.2: 1-T, 2-F, 3-T, 4-F
Q.3: a) Crust, b) Mantle, c) Outer core, d) Lithosphere, e) Asthenosphere
Q.4: c) Crust
Q.5: b) Inner core
Q.6: c) Crust