Curated OER
Amounts of Dissolved Oxygen in Various Bodies of Water
Young scholars 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...
Curated OER
Dissolved Oxygen and Photosynthesis: 1
High schoolers are taught that plants produce oxygen underwater, and they design an experiment that test this question. They discuss whether plants give off oxygen, and how to measure this. Students measure the increase in dissolved...
Curated OER
Dissolved Oxygen and Temperature
Young scholars are shown how temperature affects dissolved oxygen and they create a graph showing this relationship. They think about the adaptations of animals to live in different water temperatures. Students test four different water...
Curated OER
Dissolved Oxygen Introduction
Students are shown how dissolved oxygen enters the water. They are taught the difference between a water sample that has been exposed to the air and one that has not. Students brainstorm what organisms need to survive. They use dissolved...
Maryland Department of Natural Resources
Eyes on Dissolved Oxygen
Learn about the factors that affect the way oxygen dissolves in salt water with a chemistry lab. After studying the molecular structure of water, young scientists figure out how aeration, temperature, and organic waste affect dissolved...
Curated OER
Explore: 5th Grade Dissolved Oxygen
Fifth graders, in groups, use basic science process skills to measure and compare the dissolved oxygen levels and pH levels of distilled, stream, and pond water.
Curated OER
Dissolved Oxygen and Respiration
Learners are presented with the question, "Do plants that grow underwater use oxygen?" They create an experiment to test the presence of dissolved oxygen in the water using provided materials. Student experiments include a control jar as...
Curated OER
Too Much Oxygen or Too Little?
In this oxygen worksheet, learners analyze date about the oxygen levels in a river to determine the cause of the dying fish. This worksheet has 2 graphs, 12 short answer questions, and 2 graphic organizers.
Curated OER
Water Quality and Dissolved Oxygen
Students investigate the relationship between dissolved oxygen and organic materials and aquatic organisms. This is a 3-lesson series in which students explore dissolved oxygen and then design an experiment testing the effects of changes.
Curated OER
Dissolved Oxygen Activity
Young scholars explore why dissolved oxygen must be present for aquatic life to survive. They explain what dissolved means. Students discuss what dissolved oxygen is. They watch as the teacher lights two candles and place a jar over...
Curated OER
Simulating the Effects of Biodegradable Wastes on Dissolved Oxygen
Students evaluate the relationship between biodegradable waste and dissolved oxygen in water. In this biodegradable wastes lesson students complete a lab activity in groups then analyze their results.
Curated OER
What If There's No Light?
students discuss the importance of light and the consequences of living without it. Using a plant as a demonstration, students predict and observe what happens to a plant when it does not receive enough light. In groups, they experiment...
Curated OER
Dissolved Oxygen in an Aquatic Ecosystem
High schoolers explain why dissolved oxygen is important in aquatic ecosystems. They evaluate the optimal dissolved oxygen levels for living organisms.
Curated OER
Oxygen Levels and Aquatic Plants and Animals
Students design an experiment to test the effects of a change in the amount of dissolved oxygen of water on aquatic plants and animals. Questions are offered for exploration and experiment design. Results are tabulated and conclusions...
Curated OER
Introduction to Dissolved Oxygen and Demonstration of a Simple Test Procedure
Students explain the importance of dissolved oxygen in water ecosystems. They describe the aquatic oxygen cycle and the effect of water pollution on oxygen. They make observations, collect data and draw a conclusion.
American Chemical Society
Why Does Water Dissolve Sugar?
Did you know that if you wait long enough, the M on the outside of an M and M will float to the surface when submerged in water? Learners observe the sugar coating of an M and M while it is dissolving in water. They explain how this...
Curated OER
Dissolved Oxygen
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.
Curated OER
Dissolved Oxygen
Students examine characteristics of dissolved oxygen. Given a stream temperature, and stream conditions, students study the relationships of the dissolved oygen in a stream, in organic waste loads.
Curated OER
Where's the Oxygen?
Young scholars study seawater and how temperature and salinity influence it. In this oxygen activity students complete a lab activity on dissolved oxygen.
Curated OER
Science: Dissolved Oxygen and Water Quality Sampling
Students perform tests to determine the level of oxygen dissolved in water. After examining a table displaying the temperature and solubility of water, they examine the three stages involved in the test. Upon completion, students explain...
Curated OER
Ecosystem Damage from Household Cleaners
Third graders assess the damage done to various ecosystems by cleaning products and discover how scientists test water quality. Using stream water and common household cleaning agents, they work in groups to test for pH levels. Once...
Curated OER
Salmon Scavenger Hunt
Learners go on a salmon scavenger hunt to find out about threats to salmon populations. They gather information about some of the reasons wild salmon have gone from such incredible abundance to relative scarcity, and about some of the...
Curated OER
Water Quality Monitoring
Students comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...
Curated OER
Testing the Waters
Learners use test kits to measure the level of chlorine, iron, sulfide, and dissolved oxygen in tap (drinking) water and stream water. They post and evaluate the results of these water quality tests.