Curated OER
Digestive Enzymes, Nutrition and Your Health
As Natalie describes in this video, nutrition is about more than just having a healthy diet. Your body's absorption, digestion, and elimination is key in your overall health. The function of enzymes is clearly explained along with the...
Bozeman Science
Bozeman Science: Emission or Absorption Spectra
In the following video Paul Andersen explains how the photons emitted from or absorbed by an atom or nuclei is directly related to electrons moving between energy level. Absorption and emission are a direct result of the conservation of...
Bozeman Science
Bozeman Science: Stimulated Emission
In the following video Paul Andersen explains how stimulated emission can be used to create coherent light. When an atom absorbs a photon it moves to a higher energy level through stimulated absorption. It may then release a photon and...
Crash Course
Crash Course Kids 16.1: Land and Water
Remember Sol, the closest star to Earth? We like to call it the Sun and we haven't talked about it in a little while. One interesting thing about the energy we get from the sun is that it's not absorbed the same way by different...
Crash Course
Crash Course A&p #33: Digestive System, Part 1
Nachos are delicious. And versatile because today they're also going to help us learn a thing or two about your digestive system. Nachos can provide us with energy and raw materials, by first ingesting something nutritious, propelling it...
Khan Academy
Khan Academy: Absorption in the Visible Region
Physical basis of our perception of color. Example of beta-carotene, the molecule that makes carrots orange.
Khan Academy
Khan Academy: Teeth
This Khan Academy resource is a video about the role teeth play in the digestion system.