Carbon Cycle Gizmo 2021 PDF

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Student Exploration: Carbon Cycle Vocabulary: atmosphere, biomass, biosphere, carbon reservoir, carbon sink, fossil fuel, geosphere, greenhouse gas, hydrosphere, lithosphere, photosynthesis

Prior Knowledge Questions (Do these BEFORE using the Gizmo.) In the process of photosynthesis, plants take in carbon dioxide (CO2) from the atmosphere and water (H2O) from the soil. Using the energy of sunlight, plants build molecules of glucose (C6H12O6) and oxygen (O2). 1. How do plants on Earth affect the amount of carbon in Earth’s atmosphere? decrease the amount of C02 and convert it to Oxygen.

Plants

2. Animals eat plants and produce carbon dioxide and water. How do animals affect the amount of carbon in Earth’s atmosphere?

Animals increase the amount of C02 in the

atmosphere.

Gizmo Warm-up The Carbon Cycle Gizmo allows you to follow the many paths an atom of carbon can take through Earth’s systems. To begin, notice the black carbon atom in the Atmospheric CO2 area, highlighted in yellow. The glowing blue areas represent possible locations the carbon atom could go next. 1. From Earth’s atmosphere, where can the carbon atom go next? It can go to exposed rock, land plants, or oceanic CO2.

2. Click on Land plants and read the description. How did the carbon atom get from the atmosphere to a plant?

During photosynthesis, plants use the energy of the sun to

form glucose and oxygen from carbon dioxide and water.

3. Select Land animals. How did the carbon atom get from land plants into the animal?

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The animals ate the plant.

4. Select Atmospheric CO2. How did the carbon atom get from land animals back to the atmosphere?

Carbon dioxide is a byproduct of cellular

respiration. Activity A:

Get the Gizmo ready:

Carbon pathways

 Click Reset.

Introduction: Earth can be divided into four systems. The atmosphere is the air above Earth’s surface. The hydrosphere is composed of all of Earth’s water. The geosphere is the rocky, non-living part of Earth. The biosphere consists of all living things, including people. Some scientists use the term “anthroposphere” to describe everything made or modified by humans. Question: How does carbon move between the atmosphere, hydrosphere, biosphere, and geosphere? 1. Explore: Use the Gizmo to create a path for carbon that begins and ends in the atmosphere. Fill in the steps in the path below. Then, label each location with the system it represents. Finally, summarize very briefly how the carbon atom got to that location. Carbon path

System

Atmospheric CO2

Atmosphere

Oceanic CO2

Ocean

Marine Plants/ Algae

Ocean

Marine animals

Ocean

Sediments

Land

Lithosphere

Carbon containing

How it got there Atmospheric CO2 comes from volcanoes, burning fossil fuels, and other sources. Carbon dioxide dissolves in cold ocean surface waters. In the process of photosynthesis marine algae and plans remove carbon dioxide from ocean water making glucose and oxygen.

Marine animals consume marine plants and algae for energy. Uneaten marine animals fall down to the ocean floor and become a part of marine sediments.

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sediments from sedimentary rocks such as shale and siltstone.

Volcano

Volcano

In the earths crust rocks are heated to high temperatures and melted.

Atmosphere CO2 Atmosphere During volcanic eruptions, carbon dioxide that is dissolved in magma is released into Earth’s atmosphere. 2. Create: Click Reset. Use the Gizmo to create a path in which the carbon atom goes from the atmosphere to the hydrosphere, biosphere and geosphere. Describe each transition briefly. Atmosphere

Hydrosphere

Biosphere

Geosphere

Atmospheric CO2

Oceanic CO2

Marine plants/algae

Sediments

During photosyhthesis, marine algae and plants remove carbon dioside from ocean water, making glucose and oxygen.

Uneaten plants and algae drift down the ocean floor and become part of marine sediments.

Volcanoes, burning fossil fuels, and other sources.

Carbon dioxide dissolves in cold ocean surface waters.

(Activity A continued on next page)

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Activity A (continued from previous page) 3. Explore: Use the Gizmo to create three more carbon paths, each starting and ending in the atmosphere. Label each location with A for atmosphere, B for biosphere, G for geosphere, or H for hydrosphere. (You can also use P for anthroposphere if you like, or just include it in the biosphere.) Path 1: Atmospheric CO2 (A), Oceanic CO2 (B and H), Shells/coral, Limestone (G), Cement plant(P), Atmospheric CO2 (A)

Path 2: Atmospheric C02 (A), Exposed Rocks (G), Oceanic C02 (H and B), marine plants/algae, Sediments (G), Natural Gas (P), Atmospheric Ch4 (A), Atmospheric CO2 (A).

Path 3: Atmospheric C02 (A), Land plants (B), Soil (G), Sediments (G), Lithosphere (G), Volcano (A), Atmospheric CO2 (A).

4. Explain: Based on the Gizmo, explain how the following transitions might take place: A. Describe at least two ways that carbon can get from a land plant to the atmosphere. One way it through forest fires. The fire releases carbon dioxide into the atmosphere. Another way is when animals consume land plants they release carbon dioxide as a byproduct.

B. Describe at least two ways that carbon can get from the atmosphere to the hydrosphere.

One way is that carbon dioxide automatically dissolves in

cold ocean surface waters so large bodies of water already have a high concentration on carbon dioxide. Another way is when carbon dioxide dissolves in rainwater which later reacts with the minerals in rocks. The rocks then get carried into large bodies of water by rivers or streams and the carbon is transported through the minerals and then into the body of water.

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C. Can you find two ways that carbon can get from the ocean to the lithosphere? (The lithosphere is the rigid layer of the Earth, including the crust and part of the mantle.)

One way is carbon containing sediments form sedimentary rocks such as shale and siltstone which become part of the lithosphere. Another way is when dead shelled animals pile on the ocean floor, they get compressed into limestone which is part of the lithosphere.

D. Describe at least two ways that carbon can get from seashells to the atmosphere. Atmosphere->Hydosphere->Shells/Coral->Hydrosphere->Atmoshpere

2. Atmosphere->Hydrosphere->Shells/Coral->Limestone->Cement plant>Atmosphere

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