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Stormy Days & Gamma Rays

Lightning crackles across roiling skies—a visible display of a thunderstorm's energy. However, these storms produce more energy than we can see. Scientists have now used new gamma-ray imaging techniques to reveal invisible energy streaming out of these natural light shows. Learn how gamma rays relate to the electromagnetic spectrum and explore the relationship between wavelength and energy, all while drawing connections to weather phenomena.

Convection Connections

For astronomers, watching convective cells of gas move on the surface of a distant star was kind of like looking at a lava lamp. Begin a unit on energy transfer by having students discuss lava lamps and the process of convection at work in them. Then have students read about the first observation of convection on a distant star and its potential scientific importance. Finally, students will brainstorm and diagram other examples of devices or natural processes that involve convection.

Photoluminescent Bat Toes

Biologists didn't design their experiments looking for glow-in-the-dark feet, but sometimes scientific failures yield surprising discoveries. If glowing toes sound batty to you, learn how scientists illuminate the secrets of a flighty mammal while answering questions about the scientific process.

Green light means “go”

Just when we all thought we had evaporation all figured out, clever experiments shine a new light on old assumptions. A new study points to light having the ability to help sever bonds (a type of intermolecular force) between water molecules to boost evaporation. Learn how these findings support new scientific claims and challenge the old notion that light affects evaporation only indirectly, through heat generation.

Fluorescing frogs

Light up your class with examples of fluorescence, including recently found biofluorescence in many frog species. Learn about the discovery of fluorescing frogs, discuss the potential evolutionary advantages of fluorescence, answer questions about the chemistry behind fluorescence and perform a demonstration of fluorescence from common objects.

Syncing the power grid to renewable energy

How is the U.S. doing in its transition away from coal-fired power plants to renewable energy sources? Analyze state and national data to learn about the transition and one of the major challenges: keeping the grid stable as large power plants shut down.

Not too hot. Not too cold

Staying cool in the summer and keeping warm in the winter may become easier. Learn about a new thermal fabric prototype and its ability to regulate temperature, answer questions about its design and function and discuss potential applications.

Applying the ideal gas law

Summary: Students will review the ideal gas law and use a simulation to explain the assumptions made in a recent study about how climate change is impacting baseball. Learning Outcomes: Exploration of the cause and effect of manipulating conditions of a gas using a simulation, identifying relationships of variables using a mathematical equation and application of theoretical concepts to real-world examples.

Chemists Crack the Code to Ancient Roman Concrete

The ancient Romans built concrete structures that have stood for thousands of years. In this Guide, students will learn how scientists experimented to make Roman-style concrete — without causing explosions!

Concrete physical and chemical changes

Use a real-life example to give students a deeper understanding of physical and chemical changes and properties of substances.

Write a scientific question based in history

In this quick activity, students will write a scientific question to learn more about a historical artifact. Learning Outcomes: Asking scientific questions

Mix concrete like a Roman

Students will answer questions about the online Science News article “These chemists cracked the code to long-lasting Roman concrete,” which explains the process scientists used to re-create the Romans’ superb building material. A version of the article, “Chemists Crack the Code to Ancient Roman Concrete,” appears in the February 11, 2023 issue of Science News.