It's all Interconnected

Extinction events have happen throughout geologic history, but only five mass extinctions occurred over the last 4.5 billion years. Scholars view fossils from a layer of sediment during an extinction event and observe patterns to draw...

Galapagos Penguins are the only penguins on earth that live north of the equator (in the wild). In this last lesson plan a discussion on how the Galapagos islands developed their populations and diversity sparks the introduction. Two...

Climate affects populations in different ways. Scholars research extinct organisms and mass extinctions in part three of the 10-installment Discover Your Changing World series. They create graphic organizers, then fill in the information...

What can fossils tell us about periods of extinction? Young scholars interpret fossil layers to make conclusions about changes in life during different geological time periods. They analyze the fossils for abundance and diversity as well...

Reptiles survived the largest extinction event on the planet and then they grew into the most dominant class of the Mesozoic Era. They quickly evolved into giants on land, sea, and air. In an episode of the PBS Eons series viewers learn...

Did you know that 98 percent of organisms that ever lived are now extinct? PBS Digital Studios presents viewers with information about previous extinctions, their causes, and related statistics such as what percent of organisms went...

Should cuteness be the top priority in wildlife conservation efforts? Science scholars ponder the process of determining how best to spend conservation dollars in an insightful video. The narrator discusses the strategy of conserving...

Everyone knows about the extinction of the dinosaurs, but what other mass extinctions have happened? The video explains how scientists define mass extinctions. It offers insight into the debate about the number of mass extinctions as well.

Pique interest in water pressure, demonstrate buoyancy, and explore water displacement concepts with a homemade Cartesian diver. You may want to change the name of the toy, however, as is is not documented the Rene Descartes actually...

All mammals have warm blood, are vertebrates, breathe with their lungs, have hair or fur on their bodies, and produce milk for their young. But not all mammals give birth to their young in the same manner. Watch a video that explains how...