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When wind and water move, they don’t move alone — they take parts of the land with them. In this activity, students will investigate how water carries sediments from one location to another via erosion and will explore how this natural process can alter the landscape.

In this quick activity, students will discuss confounding factors in their own lives and in scientific research to determine why it is important to identify and control for those factors. Learning Outcomes: Reviewing confounding factors and learning why it is important to identify them in science.

Some scientists studying animal behavior are interested in whether nonhuman animals are intelligent and self-aware. In this activity, students will explore recent research and draw on their own experiences to consider how intelligence is defined and that definition might differ from one species to another.

In the face of habitat loss and pollution, more species around the world are threatened by extinction. But how should conservation resources be allocated? In this activity, students will debate whether the allocation of conservation resources should consider the cultural significance of a species.

Many of the things people make — from concrete to bread — undergo physical and chemical changes during production. While making bread, students will learn more about the differences between chemical and physical changes and how the two are related.

Most of us drive across bridges every day and never question their structural integrity. We trust that the bridge will stand. In this activity, students will study a famous bridge collapse and consider how it could have been prevented. They also will learn how engineers are testing whether crowdsourced cell phone data could be used to determine when bridges need repairs. Using simulated data of bridge vibration frequencies, students will identify whether an imaginary bridge might be unstable. Students have the option of creating model bridges and testing their structural integrity.

The emissions of greenhouse gases through human activities are changing the world and making it warmer. But there are technologies and strategies that can reduce these emissions and slow climate change. In this activity, students will research methods of reducing carbon dioxide production and removing carbon from the atmosphere and present on their findings.

Have you ever wondered how the people who get to fly in space are chosen? The path to becoming an astronaut has changed a lot over the years. In this activity, students will learn about the space travelers of the past and present — and consider a future where the diversity of astronauts better reflects the diversity of all of humankind. Students will use their creative writing skills to imagine this future.

The multitalented Louis Pasteur was a chemist, biologist, the father of microbiology and the inventor of pasteurization. In this hands-on lab, students will learn about Pasteur’s contributions by conducting an inquiry-based yeast fermentation experiment that explores the concept of pasteurization. In this experiment, students will observe, calculate and graph the volume of carbon dioxide produced by yeast during fermentation at different temperatures and identify the point where the yeast have been killed and pasteurization occurs.

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

Lakes can vary in color based on levels of sediment, organic matter and algae. Sometimes though, a lake will stand out – not matching the other lakes in an area. Look for these anomalies by participating in a virtual lake scavenger hunt, and help figure out why these lakes don’t fit in! In this activity, students will learn how climate change influences lake color and will investigate lakes with irregular colors that have been impacted by natural or human-made forces.

In this quick activity, students will create their own unit of length to measure something in the classroom and use principles of dimensional analysis to convert their measurement to a partner’s unit. Learning Outcomes: Units of measurement, unit conversion.