Curated OER
Alkane Reactions
In this alkane reactions activity, students define combustion and write the balanced equations for the combustion reactions. Students write the structural formulas of the products including all possible isomers and their percent...
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Introducing Particles
Students predict what is going to happen using prior knowledge being prepared to alter a view when faced with new evidence. They then accurately measure and record liquid volumes realizing that liquids and granular solids have...
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Using Hazard Symbols
In this hazards worksheet, students determine what the different hazard symbols mean and then match the symbols that would be found on specific chemicals. This worksheet has 1 matching and 3 short answer questions.
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Properties of Liquids
Seventh graders explain that liquids are made up of tiny particles and how these spaces allow other particiles to fit in between larger particles. They then plan and carry out simple scientific experiments.
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Molecular Evolution in Plants
High schoolers are using a paper chromatography study that is suitable for introductory biology. The absorption spectra studies and gel electrophoresis studies are appropriate for students who have complete both introductory biology and...
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Molecular Evolution in Plants
Students examine chlorophylls. They explore the absorbing pigments in a variety of plants. Through activities, students determine spectrophotometrically. They compare plant proteins from the family Brassicace to assess the level of...
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Getting the Minerals Out
Students explore the tissues of the bone. They discuss bone composition and physiology. Students perform experiments to compare and contrast the decalcifying properties of several liquids.
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The History of Ethanol in America
Sixth graders explore and examine the production of biofuels from the 1850's to the present. Included in their research is Henry Ford, ethanol, World War I and prohibition. They explain the importance of grains and grasses for the...
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Chemistry Wk 2
In this chemistry learning exercise, students calculate the freezing point of a given solution. Students calculate the final temperature and state of the water in a given problem. Students solve several problems provided.