Tells the story of a kid diagnosed with anemia. Be sure to read the whole story and click on the "more articles" tab to get more information.
Good basic explanation of what this disease is, how it affects people who have it, and what treatments doctors and nurses use to help.
Three billion years ago single-celled underwater bacteria used sunlight to convert carbon dioxide and water into tiny oxygen bubbles. Soon plants were turning an atmosphere full of volcanic carbon dioxide into oxygen. As we learn in this video segment from Interactive NOVA: "Earth," photosynthesis created a good home for animals and humans, though not for some primitive organisms. They had to retreat to where oxygen couldn't reach them. Join researchers as they search for these organisms, now considered tiny time capsules from a time before there was oxygen on Earth.
Explore the two complementary processes of photosynthesis and cellular respiration.
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An incredibly thorough site with a wealth of basic information on oxygen. Highly recommended.
Very nice site with a great deal of excellent and helpful information on oxygen.
Why do we care about air? Breathe in, breathe out, breathe in... most, if not all, humans do this automatically. Do we really know what is in the air we breathe? In this activity, students use M&M(TM) candies to create pie graphs that show their understanding of the composition of air. They discuss why knowing this information is important to engineers and how engineers use this information to improve technology to better care for our planet.
An explanation of how shock, oxygen delivery, and metabolism are related.
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Video talks about the carbon cycle and uses a computer as a metaphor to show how the cycle can be disrupted by climate change. [3:55] Includes a short quiz and a list of additional resources to explore.