Waste: Where Does It Come From? Where Does It Go?

Students summarize and illustrate how a water treatment plant and wastewater treatment plant work. Students describe the source of water for their community and the adequacy of groundwater to meet the community's needs. Students also...

In this age of globalization, the foods we eat often come from countries scattered all around the world. This research-based lesson asks young scholars to pick two of their favorite food items and investigate the origins of their...

Did you know that the population is expected to grow to 11 billion by 2100? The resource serves final installment in a six-part series on the global population and its effects. Scholars interpret data from the United Nations about the...

Where does the mass for a growing tree come from? Scholars consider a few different hypotheses and guess which is correct. They then analyze data from different experiments to understand which concepts science supports.

Part of a biology playlist, the video discusses human ancestry and represents the first in a smaller four-part series exploring humans. It describes the fossils found, where the fit on the family tree, and why there are so many missing...

Gold comes from rocks, but rocks can't produce gold—so where does it really come from? The video presents two competing theories of where gold comes from and how it is produced. 

When did things start going viral? Travel back through eons of history and learn about the origins of viruses. Part of a larger series, the lesson discusses what scientists already know and how they study viruses. The video also details...

Just when you thought you had life figured out ... here comes another great video! Young biologists discover the multi-faceted meaning of life through a video from a comprehensive science playlist. Content includes when life appeared on...

What is energy? Where does it come from and how does it move from place to place? Learn about the different kinds of energy, how energy changes form, and what heat really is. With great visuals to accompany some difficult concepts such...

Biotechnology pros produce their own biofuel using waste oil and fresh vegetable oil. They test the quality of their product using titration techniques and pH analysis. They write their observations and report their findings. Be aware...