Students discuss the relationships between dissolved oxygen in a stream, stream temperature, organic waste loads, and stream conditions by studying and using a model of dissolved oxygen in the stream.
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Amounts of Dissolved Oxygen in Various Bodies of Water
Students test water to determine the dissolved oxygen content while displaying the proper use of testing instruments while visiting water testing sites. They determine if the amount of dissolved oxygen is appropriate for the tested...
11th - 12th Science
Joseph Priestley, Discoverer of Oxygen
Do you want to hear a joke about nitrogen and oxygen? NO. We all know there is oxygen in the air and that plants produce oxygen, but how was it discovered? Scholars read a handout, answer questions, and analyze material in the...
9th - 12th Science CCSS: Adaptable
Circulatory and Respiratory Systems
Viewers follow the paths of oxygen and carbon dioxide through the human respiratory organs and the path of the molecules through the human circulatory system, in a short video about how the body delivers oxygen and picks up carbon dioxide.
12 mins 9th - 12th Science CCSS: Adaptable