What came first?

What came first, pedestrian one or pedestrian two? Scholars consider a problem scenario in which two people walk at different rates at different times. They must decide who reaches a checkpoint first. Their answers are likely to surprise...

In this magnetic reconnection worksheet, students solve seven problems using the data and graphs from the THEMIS satellite constellations, which show a series of events triggered by a magnetic reconnection. Students interpret the data in...

Students investigate economic growth and standard of living. In this economics lesson, students investigate the GDP per capita and how it affects the economy. Students differentiate nominal and real GDP.

In 1977, scientists discovered hot springs in the middle of deep, cold ocean waters near the Galapagos Islands. Scholars research the chemical reactions that explain what scientists found at the Lost City. A discussion connects many...

Meant to be a simulation of a deep-sea exploration, this requires that another lesson be completed first. In that lesson, titled "Animals of the Lost City," marine biology buffs construct murals of benthic communities. In this lesson,...

When in drought, plant a tree! A creative video lesson explains how trees of the rainforest create rain as a byproduct of photosynthesis. Without trees, the rainforests would not exist which is a real problem in regions where logging...

"Hahai no ka ua i ka ulula'au." In other words, "The rain follows after the forest," but is it actually true? The video discusses the development of the rain forests and their unique water cycle. It also offers advice on what actions can...

How can you have a zeroth law? The ninth installment of the Crash Course Engineering series focuses on the First and Zeroth Laws of Thermodynamics, including how the zeroth law came into place. Viewers also learn about stationary,...

Time to expand your thinking! A video lesson begins with an explanation of topology and its application to new technology. The narrator shares examples of electron transfer of electricity and data storage in computers.

Students examine how the Manduca came to America the economic means that made it possible. They discover what frass is and make observations. They make their own speculations on why the Manduca came to America.