Flowing From Here to There

What does the ground around your home have to do with water pollution? Young ecologists learn about their local watershed and create their own cause-and-effect models of the hydrosphere.

From gas to liquid condensation to solid frost, water undergoes phase changes before students' eyes! Using ice, salt, water, and a metal can, they set up an investigation that can be used in a physical science setting, or as part of a...

The sun sends the earth 35,000 times the amount of energy required by all of us on the entire planet, every day. The fourth lesson in the 10-part series looks at how light energy from the sun transfers into thermal energy. Scholars build...

Middle or high school environmental studies classes will learn much from this presentation on energy in ecosystems. It covers the foundational topics of trophic levels, food webs, and nutrient cycles using informational text and...

From anteaters to zebras, why are both sexes equally represented in number? Explore a quirk in evolution with a video from a thought-provoking science playlist. The narrator shows examples of species that might only need a few males,...

We live in the Cenozoic Era, and most of the animals we recognize first appeared in this era. However, the animals that existed at the start of the era bear little resemblance to present day. As one part of a larger series, individuals...

How do you plan to approach standard LS1C, Organization for Matter and Energy Flow in Organisms? Avoid information overload with helpful advice in a short video. Topics include energy sources, relationships between organisms, and...

Go with the flow and use a helpful resource. A set of two activities has learners investigate flow rates. They first determine the flow rate of a faucet by measuring how long it takes to fill a bucket. Using the results, they make a...

Scientists measure dark matter based on gravity, but how do we find something that can't be detected by anything on the electromagnetic spectrum? Understanding what doesn't work leads to new tests and machines in the search for dark...

Learners examine the primary controllable and uncontrollable factors that put one at greater risk for developing heart disease. Through discussion, research, physical tests, and questionnaires they determine whether or not they are at...