The Fossils MEL
Below are links to resources that will help students use the Fossils MEL to make claims and justify the connections between fossil evidence of past climates and current scientific models that present Earth's climate as dynamic and ever-changing.
This article provides an introduction to the Fossils build-a-MEL (baMEL). It is useful even if you are using the Fossils MEL with your students. The primary difference between the MEL and the baMEL is that with the MEL students are given two models and four lines of evidence in a preconstructed diagram where as with the baMEL students choose two models from three and select four lines of evidence from eight to create their own MEL diagram.Climate Changes of the Past (Acrobat (PDF) 324kB Feb8 21)
Next Generation Science Standards Performance Expectations
HS-LS4-6: Biological Evolution: Unity and Diversity
- Create or revise a simulation to test a solution to mitigate adverse impacts of human activity on biodiversity.
HS-ESS2-7: Earth's Systems
- Construct an argument based on evidence about the simultaneous coevolution of Earth's systems and life on Earth.
Model A: Many organisms' fossils are missing from the fossil record. We cannot make any conclusions about Earth's past environments from fossils.
Model B: Fossils provide evidence for Earth's changing surface. Understanding past life forms tells us about past environments.
- Fossils MEL Model Plausibility Ratings (Acrobat (PDF) 121kB Feb8 21)
- Fossils Weather MEL – Diagram (Acrobat (PDF) 119kB Feb8 21)
- Explanation Task (Acrobat (PDF) 125kB Feb8 21)
Lines of Evidence
Evidence #1: Trilobites were small animals that lived at the bottom of the ocean. They fed on organic matter in sediment on the ocean floor. Because trilobite fossils are so abundant and well preserved in the limestone and shale rock of Ohio, they were officially named the state fossil.
Evidence #2: Leaf fossils from Wyoming found in a deep rock layer show a climate that is cooler than that of the fossils found above it.
Evidence #3: The Svalbard forest in Arctic Norway is filled with fossils of tropical trees, called Lycopsid. These trees lived hundreds of millions of years ago.
Evidence #4: Many large geographic areas, like the Blue Ridge and Piedmont regions in Georgia, are made up of metamorphic and igneous rock. Fossils are not usually found in these types of rock.
- Fossils MEL – Evidence Texts (Acrobat (PDF) 781kB Feb8 21)
This Plausibility Ranking Task (PRT), which may be completed prior to using any MELs, helps students to understand the role of evidence in supporting or refuting models.
- Plausibility Ranking Task (Acrobat (PDF) 20kB Feb8 21)
Prehistoric Climate Change and Why it Matters, from the Smithsonian Institute includes background information and an activity that engages students in leaf margin analysis.