American Museum of Natural History
Video length is 8:12 min.Learn more about Teaching Climate Literacy and Energy Awareness»
See how this Video supports the Next Generation Science Standards»
Middle School: 3 Cross Cutting Concepts, 1 Science and Engineering Practice
High School: 1 Cross Cutting Concept
About Teaching Climate Literacy
Other materials addressing 4e
Other materials addressing 5b
2.1 Changes in energy flow over time.
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About the Science
- The scientists featured in video use a new technique called surface exposure dating, which uses chemical analysis to determine how long minerals within rocks have been exposed to the air since the glaciers around them melted.
- Comments from expert scientist:
Really cool look into how field work and lab work operates!
- Describes the methodology behind surface exposure dating: Cosmic rays reach the quartz on a rock, the rays breaks apart the silica and oxygen to produce beryllium 10, the rock is analytically sampled for a time in which it was exposed to the atmosphere, thus melting off the glacier.
- The scientists are then able to compare glacier melting with CO2 levels increasing
About the Pedagogy
- Video shows scientists in the lab and doing field work.
- Link to Classroom Discussion Activity is provided.
Next Generation Science Standards See how this Video supports:
Cross Cutting Concepts: 3
MS-C1.3: Patterns can be used to identify cause and effect relationships.
MS-C1.4:Graphs, charts, and images can be used to identify patterns in data.
MS-C2.2:Cause and effect relationships may be used to predict phenomena in natural or designed systems.