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A carnivorous plant enzyme and an enzyme from a symbiotic fungal friend expedite digestion of ants. Use this as an example of enzymes, to introduce catalysts to your students. Then have students investigate how enzymes relate to catalysts, create their own catalyst metaphor and find another example of a catalyst or enzyme. Have students share examples and, as a class, discuss why scientists are interested in learning more about enzymes or other catalysts and potential applications of catalysts.

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.

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.

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.

Love mayonnaise or hate it, physicists just put this contentious condiment to work. Scientists struggle to study the behavior of matter during the process of nuclear fusion. Learn how researchers overcame some of these obstacles: They used a condiment with some surprisingly similar characteristics. It also helped them answer questions about the value of models for illustrating scientific processes.

How did the ancient Egyptians build the pyramids? It's an age-old mystery. A new study points to hydraulic engineering. But does this idea really hold water? Some experts in the field argue against new evidence being provided to support such claims. Learn how researchers use evidence to support claims while discussing the value of healthy skepticism in science.

Take note — there could soon be a new element on the block. By smashing atoms together, scientists have been expanding our periodic table of elements beyond what occurs in nature. Learn how scientists create them while answering questions and discussing how such innovations may help us in the future.

Physicists propose that trees may help detect high-energy subatomic particles called neutrinos. Learn how Earth’s atmosphere alters these incoming high-energy subatomic particles from space. Then, explore how scientists could use this interplay to develop new ways to detect high-energy neutrinos.

The sound of running water can evoke thirst or make for a relaxing environment. Physicists have recently figured out what causes the burbling of this alluring sound. Get your students thinking critically about this everyday phenomenon and explore possible variables behind it. Then have them read about a recent scientific study that explains the physical science principles behind the burbling water.

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.

Sweating has a surprising purpose for one desert plant. Students will learn about a chemical adaptation that allows the plant to collect moisture in an arid environment. They’ll answer questions about using videos to collect data and then draw molecular diagrams that illustrate the plant’s adaptation.

Colliding tectonic plates might make your diamond blush. Learn how differences in crystal structure give rise to distinctive physical differences, such as the rare pink diamonds of Western Australia. Answer questions about the value of skepticism in science and discuss how uncovering the history of our planet can give us a treasure-hunting lead.