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Covering Carbon
Climate scientists are continuing to develop new methods to sequester atmospheric carbon to help curb climate change. In this activity, students will learn about how carbon can be sequestered through the burial of organic material and review the carbon cycle. Students will practice using percent by mass concepts and dimensional analysis to calculate how much wood would need to be buried to achieve climate targets by the year 2060. As an optional extension, students may then develop a plan to mitigate greenhouse gas production that utilizes biomass burying techniques.
Do the photosynthesis and respiration shuffle
Students will review the components of respiration and photosynthesis reactions to illustrate how the two are complementary. Then students will investigate what impact megafire smoke may have had on photosynthesis for California nut trees. Then students will apply their knowledge by predicting the outcome for photosynthesis and respiration in several scenarios.
Springtail research design and data analysis
Scientists have discovered that Dicyrtomina minuta, a species of globular springtail, can perform the fastest backflip of any animal on Earth. Use this discussion to have students review how the research team studied springtail backflips by analyzing high-speed footage.
Then, in this related activity by DataClassroom, have students analyze graphs of the springtail research data to learn about the linear velocity, angular velocity, linear acceleration and rotational acceleration of springtail flips using this Stacked Graphs and Biophysics with Spring-Loaded Arthropods activity. Create a free account to view the student-facing dataset and activity within the DataClassroom web application. View the teacher answer key here.
Then, in this related activity by DataClassroom, have students analyze graphs of the springtail research data to learn about the linear velocity, angular velocity, linear acceleration and rotational acceleration of springtail flips using this Stacked Graphs and Biophysics with Spring-Loaded Arthropods activity. Create a free account to view the student-facing dataset and activity within the DataClassroom web application. View the teacher answer key here.
Amazon deforestation
Scientists agree that the Amazon is in grave trouble because of human activities, such as deforestation, and climate change. Past studies have suggested certain rates of deforestation would trigger the Amazon to transform into a savanna, but many scientists now say the forest probably doesn’t have a single, clear tipping point. Still, researchers are working to understand what needs to be done — and how soon — to save the forest. Use the map and graph titled “Rate of deforestation in the Brazilian Amazon” to have students analyze the area and rate of deforestation in the Amazon.
Treadmill-sprinting vampire bats
Learn how scientists use vampire bats' unusual locomotion to investigate mysteries of their blood-based metabolism. Then, answer questions about this study’s experimental design and discuss how chemical analysis data can support conclusions and answer scientific questions.
Smartphone Behavior
Smartphone use is changing human behavior and likely influencing our brains. New research is turning up clues as to how our interaction with devices is shaping our memory, navigation and even our happiness. Use the data visualization “Screentime” and graph “What am I missing” to have students analyze data on phone use and behavior.
Immunity and polar bear pathogens
Students will learn how their bodies help protect them from bacteria, viruses and other foreign invaders. Have students review the major components of the immune system and investigate the life cycles of a few prevalent pathogens of polar bears, focusing on the mode of transmission and effects of being infected by the pathogen. Students will then infer why polar bears are being exposed to these pathogens more regularly.
Giant rats in training
Wildlife smugglers beware: A new border-patrol agent may scurry into nearby airports. Learn how African giant pouched rats in tiny red vests are being trained to sniff out elephant ivory and other illegal goods from at-risk species. Then answer questions about the ethics of the experimental design of animal studies and the value of biodiversity.
Cats are liquid
"Cats are liquid." You may have heard this playful saying before. Cats earn a reputation for oozing in and out of some tight spots. But lately, some scientists started wondering whether they’d fit through an opening of any size. Learn how scientists have developed controlled in-home experiments to address such questions scientifically. Answer questions about independent and dependent variables and compare two similar experiments in terms of experimental design.
Catchy catalysts and exciting enzymes
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.
Assembly of Amazing Adaptations
To survive, creatures need to be able to sense many aspects of their environment, including food options. Scientists have recently discovered that the northern sea robin, an oceanic fish, has legs used for walking and also for tasting, to find buried meals. Begin a unit on natural selection/evolution by reviewing what these terms mean. Then, provide example organisms to explore their different types of adaptations (structural, physiological and behavioral). Finally, have students create their own species with adaptations specific to unique human- or natural disaster-influenced habitats.
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.