Lesson 5b – Online Data and Supplemental Evidence (pre-2018 version)
The purpose of Lesson 5 is for students to model the scientific process – which includes the experimental bench work they are completing in Lesson 5a and the collaboration and connection to others’ research. This portion of the lesson gives students the time and resources to learn from the work being completed by scientists and through their online contributions. There is another version of this lesson located here. This version is one we used prior to 2018 and we are keeping it here for teachers who prefer accessing this layout.
More In-Depth Carbon Cycle Learning
- General CO2 Information
- General carbon dioxide cycling knowledge worksheet
- University of New Hampshire’s GLOBE program has resources on the terrestrial carbon cycle that can be adapted.
- In Lesson 3, there are two PowerPoint presentations that help teach the general carbon cycle. Please see that lesson for more information, or find the actual presentations here:
- PowerPoint – Overview of Carbon Cycle
- PowerPoint – Specific Chemistry of CO2 Dissolution
- Video – This one minute YouTube video, produced by the North Carolina Aquarium, gives a nice, very basic, pictorial description of what happens to carbon dioxide as it enters a marine system and impacts shelled organisms. (Please note: It is likely best to save the video to your machine so that you can share it with students without viewing the Comment section posted below the video. Several of the comments are not necessarily appropriate for schools.)
- Carbon Cycle Jigsaw
- Background Reading for Teachers
- See also the Biological Pump Module from the University of WA High School Climate Science program. It is a great resource to teach students about Biological Pumps. An overview of the lesson’s questions and goals can be found on the Climate Science website. Specifically, the slides from the PowerPoint could be used for students to build a network diagram using Cytoscape. Again, see Lesson 2 of Ecological Networks for more information on Cytoscape. Also, the PowerPoints on the Climate Science webpage on how scientists use proxies are very helpful for both teacher background information and for teaching students.
Wet Lab Simulations
- Virtual Sea Urchin Lab (Bad Acid) – Our Acidifying Ocean Website: http://virtualurchin.stanford.edu/AcidOcean/AcidOcean.htm
- Netlogo Simulation – Use this simulation model to have students get a feel for how carbon, pH, silica-shelled diatoms, and coccolithophores might impact and affect each other in an ocean system.
Finding Current Data from around the Globe
Mesocosms – Click here for a word document
that contains compiled information on mesocosm studies and background information. Students can use this information to further explore how they might adapt their experiment and/or what supplemental data they can gather that connects to the subsystem they are studying.
What the Past Tells Us
The past tells us a great deal about current conditions in the ocean. Scientists use reliable data from the past on trends and rates of change to make predictions about our future. Here are a few marine education resources on using our past to understand the future.
- Background on ice cores and carbon dioxide: B. Geerts’ website – Chapter 1: Ice Cores. Text cleaned up in a Word Document.
- For more background information see the article, “The Geological Record of Ocean Acidification,” by B. Hönish et al., Science, 2 March 2012, Vol. 335 no. 6072 pp. 1058-1063. A PDF can also be downloaded through many sites such as: http://droyer.web.wesleyan.edu/Honisch_et_al_2012_Science_ocean_acidification.pdf .
- Chapter 12 of the textbook, BSCS: An Inquiry Approach (Level II) gives a nice description of how foram shells can be used to measure the ratio of oxygen isotopes to better understand the past.
- Collaborative animation showing compiled time history data: Trends in Atmospheric CO2.
- Walking students through this 3 minute animation is very important. There is a lot of information in the animation, which can be easily lost when first viewed. Walking students through the video is well worth the 3 minutes. It is a VERY powerful visual that gives us insight into our past and future. It also is a terrific example of the understanding that can come from combining multiple data types and sources. One of the key things to point out to students is that the rate of change in carbon dioxide levels in our atmosphere is 10-100 times faster than ever observed through our geologic records.
- Ice Core Studies: