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PPT
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Biology Junction

ADP, ATP, and Cellular Respiration

For Students 9th - 12th Standards
Hans Krebs won the Nobel Prize for his discovery of what scientists now know as the Krebs cycle. Named after him, the Krebs cycle exists as only one system of the larger set, working together to keep human bodies functioning. The...
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PPT
Geographer Online

Restless Earth

For Teachers 5th - 8th Standards
In less than 25 years, the continent of Australia moved 4.9 feet thanks to plate tectonics. The presentation introduces the idea of the layers of the earth as well as plate tectonics. It goes into why the plates move and where we believe...
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Interactive
Howard Hughes Medical Institute

Bacterial Quorum Sensing

For Students 9th - 12th Standards
The marine bacteria vibrio harveyi helps with DNA repair in humans. Understanding how to manipulate and genetically mutate this bacteria fascinates researchers. Young scientists observe two different mutations, predict the resulting...
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Interactive
Howard Hughes Medical Institute

Retroviruses and Viral Diversity

For Students 9th - 12th Standards
Eight percent of DNA comes from retroviruses. Learn what sets retroviruses apart from other types of viruses with an presentation that focuses on the differences between viruses with a DNA genome, an RNA genome, and retroviruses. 
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Lesson Plan
PBS

Exoplanets through Kepler’s Laws

For Teachers 9th - 12th Standards
The majority of all confirmed exoplanets relied on Kepler's laws to discover their locations. Scholars learn how to apply Kepler's laws and then practice using data to discover exoplanets. They benefit from NASA video footage, NOVA...