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Dissolved Oxygen in an Aquatic Ecosystem
Students explain why dissolved oxygen is important in aquatic ecosystems. They evaluate the optimal dissolved oxygen levels for living organisms.
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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