University:
High School
Course:
High School Physics
Academic year:

2022
Views:

361

Pages:

2
Author:

Charly Marenco

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 (С6Н12О6) and oxygen (O2). 1. How do plants on Earth affect the amount of carbon in Earth's atmosphere? bc plants give oxygen 2. Animals eat plants and produce carbon dioxide and water. How do animals affect the amount of carbon in Earth's atmosphere? they give more Gizmo Warm-up Atmospheric CO₂ 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. Forest fire Land plants 1. From Earth's atmosphere, where can the carbon atom go land plants,oceanic co2 next? nimals Oceanic CO. anine ants/algas Soil 2. Click on Land plants and read the description. How did the carbon atom get from the atmosphere to a plant? photosyntheses 3. Select Land animals. How did the carbon atom get from land plants into the animal? cocnsuming plants 4. Select Atmospheric CO2. How did the carbon atom get from land animals back to the atmosphere? they realize Corbin dioxide Activity A: Trains Get the Gizmo ready: . Check that the TRAINS tab is selected. Question: How does a moving train affect the path of a thrown ball? 1. Explore: Try playing catch with the Gizmo. Use different combinations of Catcher speed, Thrower speed, and Throw speed. A. What is the path of the ball when the thrower and catcher are not moving? the ball doesn't throw B. How does the speed of the thrower's train affect the path of the ball? bc if its to fast the wind speed makes the ball go on a slant 2. Observe: Set the Catcher speed and Thrower speed to zero. Turn on Show velocity arrows. The velocity of the ball describes its speed and direction. Click Play and Throw. Try throwing with each different throw speed: Slow, Medium, and Fast. How does the length of the yellow arrow relate to the speed of the throw? the longer the arrow the faster 3. Observe: Set the Thrower speed to Slow and the Throw speed to Slow. Notice the thrower has a red arrow showing his sideways speed. Click Play, click Throw, and then click Pause. Notice there are now three arrows coming from the ball. A. What do you think the blue arrow represents? if the ball was going straight were the thrower is moving the bath the ball is making C. What do you think the yellow arrow represents? B. What do you think the red arrow represents? 4. Experiment: Try different combinations of thrower speed and throw speed. A. How does the throw speed (blue arrow) affect the ball velocity (yellow arrow)? the less throw speed the higher velocity speed B. How does the thrower velocity (red arrow) affect the ball velocity (yellow arrow)? the faster velocity of the red arrow and higher ball velocity