Exploring the Relationship Between CO2 and Temperature Increase
This lesson guides students through an investigation to show the correlation between CO2 levels and rising temperatures. The students design a model using water bottles, thermometers, and Alka-Seltzer to test if CO2 can cause a temperature increase. They analyze data and draw conclusions to understand the impact of CO2 on the environment.
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Presentation Transcript
How can we show that an increase in CO2causes an increase in temperature? Lesson 8
Do now What did we wonder about last class? What were the most important things we figured out in our last lesson? How did we figure those things out? What other evidence do we need to collect today?
Driving Questions Board Share your thoughts...
Brainstorm -How can we design a model? What are some ways we can use these materials to design a model of whether CO2can cause temperatures to rise in the atmosphere? Materials: 2 water bottles, 2 thermometers, water, light source, plastic wrap, rubber bands, a way to make CO2 easily (4 tablets of Alka-Seltzer)
Plan your investigation How will you use the light? light? Why is light important in this experiment? Draw a set-up for the treatment or test condition: treatment or test condition: Draw the set-up for the control condition: control condition: What will you do that is the same do that is the same in each condition? What will you measure measurements? Explain your reasoning. measure in each condition, and how often how often will your group take How will this experiment allow you to decide whether CO2can cause an increase in temperature?
Explore! Test your model and record the results on your Student Activity Sheet.
Communicating results and making connections What information does the data table and graph tell us? What patterns do you see or notice in the data?
Making Sense Now that we have completed our activity, what can we conclude about the role of CO2in the temperature increase?
Final thoughts and questions... Share thoughts as a class. Is there anything you are still wondering about for this unit?
