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Salinity
Learners define and discuss salinity, conduct classroom experiment to determine salinity of water sample by using hydrometer, record predictions, and demonstrate understanding of how salinity influences object's ability to float in water.
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Making and Using a Hydrometer
Pupils build a hydrometer to measure the densities of fresh and salt water samples. They record the water temperature and density and use the temperature, density, and salinity conversion graph to locate the salinity. Finally, students...
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Enzyme Grabbers
Students perform simple experiments to show properties of enzymes through studying how apple sauce can turn into apple juice and experimenting with papaya seeds. Students witness how enzymes speed up reactions through witnessing the...
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EggCELLent Diffusion
Students examine and discuss the concepts of diffusion and osmosis. They observe the effects of diffusion on eggs by recording the change in an egg's size and the amount of liquid substance that remains.
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Does the increased use of fertilizers effect biodiversity?
Students conduct a hands-on lab activity in which they analyze a sample of water from a local stream or pond. They introduce a fertilizer solution into the sample and analyze and describe their findings.
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Earth Water Distribution and Water Consumption
Students explore the need for conserving fresh water and understand that it is a limited supply. For this water consumption lesson students participate in an activity and answer questions.
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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...
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Laboratory - Density of a Material
Middle schoolers conduct a lab (with water, guar gum and sodium borate) and carefully record physical and chemical properties and changes throughout the session, and experiment with weighing by difference.
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What Does Waste Do to a River?
Young scholars develop a graphic way of visualizing the concept of a million by utilizing what had happened to the Nashua River due to the dumping of raw sewage in 1962.
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Effects of Nitrate and Phosphate Changes on the Growth of Algae
Learners determine the effects of an increase of the amount of nitrate and phosphate levels on the growth of algae. the development of a hypothesis is encouraged and students proceed to a conclusion based on their results.
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Discover Science
Students practice scientific research skills. In this lesson about science, students gain experience with the following skills: comparison, observation, identification, and data gathering. Students will go from station to station and...
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MEANINGFUL METRICS with DRAMATIC DEMONSTRATIONS
Tenth graders study the metric system. In this metric instructional activity students complete a lab activity and several metric worksheets.
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Metric Mania
Students observe how to measure in metric units. In this investigative instructional activity students compare different units of volume to see how things are measured.