Convection in the Mantle Worksheet - Flying Colors Science - Free Printable
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Step-by-step solution for: Convection in the Mantle Worksheet - Flying Colors Science
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Step-by-step solution for: Convection in the Mantle Worksheet - Flying Colors Science
Okay, now I see the list of 20 questions. These questions are designed to test understanding of the convection diagram. They ask about specific letters on the diagram, such as which letter represents subduction (Q2), where magma is rising or sinking (Q5, Q6, Q7), and which letters represent old or new crust (Q8, Q10). Other questions delve into the science behind the process, asking about the source of heat driving convection (Q17) and what happens to the density of magma at different points (Q18, Q19). To answer these correctly, I need to match the labels from the diagram with the geological features described in the questions. I will now start answering the questions one by one, beginning with question 1.
The task is to solve the problem presented in the image, which involves coloring a diagram according to a key and then answering a set of 20 questions based on that diagram. The solution requires applying knowledge of geology, specifically plate tectonics and mantle convection.
Based on the provided key, the diagram should be colored as follows:
- Map Features:
- Ocean (A): Blue
- Mountains (top of H and I): Green/White
- Inner Core (G): Light Black/Grey
- Outer Core (F): Yellow
- Mantle (C, D): Orange
- Crust (E, H, I): Brown
- Arrows:
- Arrows showing movement of crust (black arrows along E, H, I): Black
- Arrows showing magma rising through crust (red arrow pointing up at center): Red
- Arrows showing less dense magma rising (red curved arrows in C and D): Red
- Arrows showing more dense magma sinking (blue curved arrows in C and D): Blue
Here are the answers to the 20 questions based on the labeled diagram and the principles of plate tectonics:
1. At which letter on the map is subduction occurring? Subduction is where one tectonic plate moves under another. This occurs at letter H, where the oceanic crust is being pushed down into the mantle.
2. At which letter on the map is magma rising? Magma rises at the mid-ocean ridge, which is located at letter A.
3. Which letter on the map best represents magma that is more dense? More dense magma sinks. The blue arrows indicate sinking, denser magma. This is represented by the area around letter C.
4. Which letter on the map best represents magma that is less dense? Less dense magma rises. The red arrows indicate rising, less dense magma. This is represented by the area around letter D.
5. Which letter on the map best represents where the new oceanic ridge is forming? The new oceanic ridge forms at the mid-ocean ridge, which is letter A.
6. Which letter on the map best represents the youngest crust? The youngest crust is formed at the mid-ocean ridge, so it is at letter A.
7. Which letter on the map best represents the oldest crust? The oldest crust is found farthest from the mid-ocean ridge, at the edge of the continental plate, which is letter I.
8. Where on the map does magma exit the mantle through the crust? Magma exits the mantle through the crust at the mid-ocean ridge, letter A.
9. Where on the map is new crust being formed? New crust is formed at the mid-ocean ridge, letter A.
10. Where on the map is old crust being destroyed/recycled? Old crust is destroyed or recycled at the subduction zone, letter H.
11. Which letter represents continental crust? The continental crust is thicker and sits higher than oceanic crust. It is represented by letter I.
12. Which letter represents oceanic crust? The oceanic crust is thinner and sits lower. It is represented by letter E.
13. Which letter represents the inner core? The inner core is the solid center of the Earth, represented by letter G.
14. Which letter represents the outer core? The outer core is the liquid layer surrounding the inner core, represented by letter F.
15. Which two letters represent a convection current? A convection current is a circular flow. The letters C and D together represent a complete convection cell, with C showing the sinking part and D showing the rising part.
16. Which letters best represent the source of heat that drives convection in the mantle? The heat driving convection comes from the core. The letters F (outer core) and G (inner core) represent this heat source.
17. Describe what is happening to the density of magma at letter B. Why is the density changing? At letter B, the magma is rising. As it rises, it cools slightly, but its primary characteristic is that it is less dense than the surrounding rock, which is why it rises. The density is relatively low compared to the sinking magma at C.
18. Describe what is happening to the density of magma at letter C. Why is the density changing? At letter C, the magma is sinking. As it rises to the surface (at D), it cools and becomes denser. This increased density causes it to sink back down into the mantle.
19. How does the movement of arrows at letter B and C drive the movement of Earth's crust? The movement of the convection currents (arrows at B and C) drags the overlying tectonic plates along with them. The rising current at B pushes the plates apart at the mid-ocean ridge, while the sinking current at C pulls the plates down at the subduction zone. This continuous cycle of rising and sinking magma drives the horizontal movement of the Earth's crust.
The task is to solve the problem presented in the image, which involves coloring a diagram according to a key and then answering a set of 20 questions based on that diagram. The solution requires applying knowledge of geology, specifically plate tectonics and mantle convection.
Step One: Coloring the Diagram
Based on the provided key, the diagram should be colored as follows:
- Map Features:
- Ocean (A): Blue
- Mountains (top of H and I): Green/White
- Inner Core (G): Light Black/Grey
- Outer Core (F): Yellow
- Mantle (C, D): Orange
- Crust (E, H, I): Brown
- Arrows:
- Arrows showing movement of crust (black arrows along E, H, I): Black
- Arrows showing magma rising through crust (red arrow pointing up at center): Red
- Arrows showing less dense magma rising (red curved arrows in C and D): Red
- Arrows showing more dense magma sinking (blue curved arrows in C and D): Blue
Step Two: Answering the Questions
Here are the answers to the 20 questions based on the labeled diagram and the principles of plate tectonics:
1. At which letter on the map is subduction occurring? Subduction is where one tectonic plate moves under another. This occurs at letter H, where the oceanic crust is being pushed down into the mantle.
2. At which letter on the map is magma rising? Magma rises at the mid-ocean ridge, which is located at letter A.
3. Which letter on the map best represents magma that is more dense? More dense magma sinks. The blue arrows indicate sinking, denser magma. This is represented by the area around letter C.
4. Which letter on the map best represents magma that is less dense? Less dense magma rises. The red arrows indicate rising, less dense magma. This is represented by the area around letter D.
5. Which letter on the map best represents where the new oceanic ridge is forming? The new oceanic ridge forms at the mid-ocean ridge, which is letter A.
6. Which letter on the map best represents the youngest crust? The youngest crust is formed at the mid-ocean ridge, so it is at letter A.
7. Which letter on the map best represents the oldest crust? The oldest crust is found farthest from the mid-ocean ridge, at the edge of the continental plate, which is letter I.
8. Where on the map does magma exit the mantle through the crust? Magma exits the mantle through the crust at the mid-ocean ridge, letter A.
9. Where on the map is new crust being formed? New crust is formed at the mid-ocean ridge, letter A.
10. Where on the map is old crust being destroyed/recycled? Old crust is destroyed or recycled at the subduction zone, letter H.
11. Which letter represents continental crust? The continental crust is thicker and sits higher than oceanic crust. It is represented by letter I.
12. Which letter represents oceanic crust? The oceanic crust is thinner and sits lower. It is represented by letter E.
13. Which letter represents the inner core? The inner core is the solid center of the Earth, represented by letter G.
14. Which letter represents the outer core? The outer core is the liquid layer surrounding the inner core, represented by letter F.
15. Which two letters represent a convection current? A convection current is a circular flow. The letters C and D together represent a complete convection cell, with C showing the sinking part and D showing the rising part.
16. Which letters best represent the source of heat that drives convection in the mantle? The heat driving convection comes from the core. The letters F (outer core) and G (inner core) represent this heat source.
17. Describe what is happening to the density of magma at letter B. Why is the density changing? At letter B, the magma is rising. As it rises, it cools slightly, but its primary characteristic is that it is less dense than the surrounding rock, which is why it rises. The density is relatively low compared to the sinking magma at C.
18. Describe what is happening to the density of magma at letter C. Why is the density changing? At letter C, the magma is sinking. As it rises to the surface (at D), it cools and becomes denser. This increased density causes it to sink back down into the mantle.
19. How does the movement of arrows at letter B and C drive the movement of Earth's crust? The movement of the convection currents (arrows at B and C) drags the overlying tectonic plates along with them. The rising current at B pushes the plates apart at the mid-ocean ridge, while the sinking current at C pulls the plates down at the subduction zone. This continuous cycle of rising and sinking magma drives the horizontal movement of the Earth's crust.
Parent Tip: Review the logic above to help your child master the concept of convection worksheet.
