Curated OER
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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Permeability of Earth Materials
Students observe and classify the permeability of a variety of materials.
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Density of a Gas
Eighth graders investigate the mass, volume, and density of a gas by producing it in a chemical reaction. The entire Density of a Gas Lab and L section of the K W L chart be formatively assessed.
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How Dense Are You?
Students examine how density is a value that describes what type of a material an object is made of regardless of its shape or size.
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Testing Termites to Discover
Learners design an experiment to discover how termites respond to their environment.
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Designing a Flotation Strategy for the Purification of Recycling
Twelfth graders work in teams to design a method of recycled plastics purification by flotation. They base their design on the concept that different kinds of plastics have different densities and keep overall costs and purification time...
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Mining for Natural Resources
Students discover that mining for nonrenewable natural resources has a dramatic effect on our environment. They gain an understanding of the processes involved in harvesting a natural resource and the impact it has on the earth.
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The Air Up There!
Students create a model of a column of air and discover one of the reasons why low and high pressure systems exist and why low pressure is often associated with bad weather.
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Selecting Soil Organisms in Compost
Students conduct an experiment to demonstrate that many of the enzyme systems needed to break down society's wastes exist in nature among the decomposers in a compost pile. They culture compost bacteria on starch agar to examine the...
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Selecting Soil Organisms in Compost
Students demonstrate that many of the enzyme systems needed to break down--and therefore clean up-society's wastes already exist in nature among the decomposers. They select the best starch-munching organisms by altering the environment...
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Towel Testing
Students examine how to design and implement experiments. In this paper towel experiment instructional activity students test the strength of paper towels.
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Soil Comparison and Analysis
Students perform tests on different soil samples. In this earth science activity, students classify the soil into groups according to test results. They write a lab report following a certain criteria.
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