Viewers learn to recognize direct and inverse relationships in the world of physics with a presentation that reveals how to recognize a direct versus an inverse relationship from a formula or graph. After showing basic examples, the...

Is there a correlation between a country's wealth and the extent of its ecological footprint? What exactly constitutes an ecological footprint, and how does one country stack up against the rest? This is a unique lesson to incorporate...

Agribusiness, human capital, productivity. Find out what your class members know about economic systems and terminology with this two-page economics worksheet that that asks kids to identify terms and concepts.

Every 18–24 months, nuclear power plants shut down to remove their used uranium fuel, a radioactive waste. Show learners how energy is made and used around the world and then focus on the United States' usage. Viewers then specifically...