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Earth's Layers 1
6th Grade Science: Unit 5 - Earth's Layers
| Question | Answer |
|---|---|
| What is the Crust? | the Earth's outer skin |
| What is the Lithosphere? | Beneath the Crust and a part of the upper Mantle. This is the layer that we walk on every day. |
| What is the Mantle? | a thick layer of hot rock. |
| What are the 2 parts of the Mantle? | the upper Mantle, which is solid but can flow slowly, and the lower Mantle, which is more solid due to the high pressure. |
| What is the Outer core? | The layer right beneath the Mantle, which is made of molten metal. |
| What is the Inner core? | Even deeper at the center of the Earth, a solid sphere mostly made of iron and nickel. |
| What does the core do? | The Core is extremely hot and plays a crucial role in producing Earth's magnetic field that protects us from harmful solar radiation. |
| What is the partially molten region between the solid Lithosphere and the flowing Mantle called? | the Asthenosphere |
| What is the Asthenosphere? | layer that allows the tectonic plates of the Earth's surface to move around slowly, causing earthquakes, volcanic eruptions, and the formation of mountains. |
| What happens to the pressure as you go towards the inside of the Earth? | The deeper you go, the greater the pressure |
| What are the 3 main chemical layers of the Earth? | crust mantle core |
| What layer of the Earth makes up 80% of Earth's volume? | the mantle |
| What are the 2 parts of the Earth's core? | liquid outer core and solid inner core |
| What are the 5 physical layers of the Earth? | Lithosphere Athenosphere Mesophere Outer Core Inner Core |
| What part of the Earth's physical layer is divided into tectonic plates? | the lithosphere |
| Scientists' knowledge of the Earth's interior has come primarily from what? | studying seismic waves generated by earthquakes |
| From lowest to the highest temperatures, which is the correct order of Earth's layers? | Crust, mantle, outer core, inner core |
| What happens in Earth's interior to produce Earth's magnetic field? | The currents in the outer core spin the inner core |
| Most geologists think that the movement of Earth’s plates is caused by | convection currents in the asthenosphere |
| The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of | plate tectonics |
| A place where two plates slip past each other, moving in opposite directions, is known as a | transform boundary |
| The place where two plates come together is known as a | convergent boundary |
| The layer of Earth made up largely of the rocks basalt and granite is the | crust |
| As depth beneath Earth’s surface increases, temperature and pressure | both increase |
| How do geologists observe Earth’s interior? | by recording and studying seismic waves |
| What is the correct order (starting from the surface) of Earth’s layers? | crust, mantle, outer core, inner core |
| Earth’s magnetic field results from the spinning of the | inner core |
| Scientists think that convection currents flow in Earth’s | asthenosphere |
| Heat is transferred within a fluid by | convection currents |
Created by:
Engle Family
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