NOVA

Evidence That Carbon Dioxide Traps Heat | Decoding the Weather Machine

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Learn how John Tyndall designed an experiment to reveal evidence that carbon dioxide traps heat in this video from NOVA: Decoding the Weather Machine. Use this resource to consider the role carbon dioxide plays in regulating Earth’s temperature and its relationship to current trends in global warming.

Wave-Particle Duality of Electrons | Einstein’s Quantum Riddle

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Conceptualize the nonintuitive idea that electrons can behave both as a wave and a particle (wave–particle duality) in this video from NOVA: Einstein’s Quantum Riddle. Use this video to support understanding of some of the quantum effects needed for explaining current models of atomic structure and intermolecular interactions and to evaluate the merits and limitations of models.

Trees Mitigate Climate Change | Decoding the Weather Machine

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Explore how humans and plants influence carbon dioxide levels in the atmosphere, with these videos from NOVA: Decoding the Weather Machine. Use this resource to develop and use models of the carbon cycle to consider strategies for mitigating climate change and to provide an opportunity for students to make an argument about the value of trying to achieve negative carbon emissions.

Interpreting Earth’s Climate Record | Decoding the Weather Machine

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Learn how scientists have pieced together a continuous 800,000-year record of atmospheric carbon dioxide levels and ocean temperatures in these videos from NOVA: Decoding the Weather Machine. Use this resource to review the difference between inference and observation and to consider the relationships between carbon dioxide, Earth’s temperature, and climate change.

The Effects of DDT on Peregrine Falcons | World’s Fastest Animal

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Learn how the insecticide DDT impacted peregrine falcons in this video excerpt from NOVA: World’s Fastest Animal. Use this resource to exemplify how human activities, such as pesticide use, have negatively impacted other species but also how humans can have positive effects on other species through conservation and responsible resource management.

Collecting Evidence for Quantum Entanglement | Einstein’s Quantum Riddle

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Learn why different experimental designs were needed to collect evidence for quantum entanglement in this media gallery of videos from NOVA: Einstein’s Quantum Riddle. Use this resource to discover how physicist John Clauser developed an experiment to test John Stewart Bell's theory and how other scientists responded to its limitations in subsequent experiments.

Peregrine Falcon Adaptations | World’s Fastest Animal

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Learn about the adaptations that make the peregrine falcon a highly effective aerial predator in these videos from NOVA: World’s Fastest Animal. Use this resource to provide detailed observations of peregrine falcons and to exemplify how adaptive traits and behaviors increase an organism’s chances to survive and thrive in their environment.

Risks and Benefits of Living Near a Volcano | Volcano on the Brink

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Learn how fluoride contamination of the drinking water due to volcanic activity leads to health problems for the population surrounding Mt. Nyamuragira in the Democratic Republic of Congo, while nutrients from lava create rich soil and productive farmland, in this video from NOVA: Volcano on the Brink. Use this resource to evaluate the hazards and benefits that living near this volcano has for the Congolese people in this region.

What Determines Lava's Flow Rate? | Volcano on Fire

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Follow a team of scientists sampling fresh lava rock near the vent of Nyiragongo, an active volcano in the Democratic Republic of the Congo, to determine how fast lava would flow in a new eruption in this video from NOVA: Volcano on Fire. Use this video to examine the relationship between a lava’s composition and its flow rate.

A Crater Lake Warns of Future Eruptions | Volcano on the Brink

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Join scientists as they examine rocks near a lake inside the crater of a dormant volcano to learn how evidence from past eruptions might inform them about the dangers of a future event in this video from NOVA: Volcano on the Brink. Use this resource to examine how the characteristics of volcanic rocks can tell scientists about past eruptions and indicate a potential risk for future volcanic events.

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