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Indicator Sponge A Discrepant Event Demonstration
Students explore the use of acid and base pH indicators. The teacher saturates an indicator sponge with congo red solution. Afterwards, the sponge is placed in a blue base solution. Students observe that the blue sponge actually turns...
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Polymerization Experiments
Students study the concepts of polymerization and the function of crosslinkage. In this polymer lesson students complete a lab activity and write down their observations.
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Making Soap
Students explore what chemical indicators are and use pH paper to determine if something is alkaline or basic. In this pH lesson students manufacture their own soap.
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Life in a Forest Stream
Students assess macro-invertebrates from a stream. In this science lesson plan, students observe, classify and identify organisms found in a stream. A lab station is constructed at the stream sight and students study the different...
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The Physical Behavior of Matter
Young scholars distinguish between three phases of matter: solid, liquid and gas, on the molecular level. They compare and predict the relative compressibility of the three phases of matter through journal writings and drawings.
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How can we calculate the molecular weight of butane?
Students colloborate in a lab experiment. No OBJECTIVES.
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Activit #2 Matter: Is It Conserved?
Students support the law of conservation of matter with evidence. They discuss the changes observed from the burning of the candle, and the differences in mass which are observed when the same reaction is carried out in an open or...
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Coloring Fabrics With Dyes from Plant Materials K-12 Experiments & Background Information
Students investigate the effects of acid and bases on dyes made with plant materials. In this chromatography lesson students predict color outcomes and complete a lab activity on color combinations.
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Crystal Growing
Young scholars explore the different phases of a crystal. In this mineral lesson students grow their own sugar crystals using a sugar recipe.
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Paint Property Experiments
Students identify various kinds of paints by using the scientific method. In this solvents lesson students collect data and identify paint samples while working in teams.
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Invisible Ink
Students wxplore acids and indicators by watching a demostration in which "magic" ink appears. They duplicate the demonstration by writing magic messages using phenolphthalein solution and painting the message with vinegar to show it.
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Combustion Reactions
Students write a balanced chemical reaction. They articulate how burning fossil fuels increase the carbon dioxide levels in the atmosphere. Students incorporate all the environmental risks involved as well.
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The Nature Of Dissolving Processes
Students examine the rule of "like dissolves like." They define and describe solutions and solubility models on molecular liquids, ionic solids, and molecular solids.
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Observing the Effect of a Change in Conditions on a System at Equilibrium by Applying Le Chatelier's Principle
High schoolers describe the Le Chatelier Principle. They participate in an experiment in which they observe the changes in an equilibrium system. They answer discussion questions to end the lesson.
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Solution Shapes
Eighth graders examine different solutions. In this solution material lesson students complete a lab activity and several worksheets.
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Chromatography
Students research types of chromatography and complete chromatography experiments.
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Activity #14 Floating Bubbles
Students comprehend that Carbon dioxide gas is relatively easy to generate. They comprehend that one way to produce it is with dry ice. Pupils comprehend that carbon dioxide gas can also be produced by combining baking soda with vinegar.
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Exothermic and Endothermic Changes
Students define and identify endothermic/exothermic reactions. Using a series of experiments, they construct and interpret potential energy diagrams for their reactions.
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Using Chromatography to Identify Unknowns
Young scholars are introduced to the concept of chromatography. They practice using new vocabular and observing experiments. They answer discussion questions to end the lesson.
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Liquids Have Differnt Viscosities
Young scholars explore visosity of matter. They run tests of various liquid substances to observe and compare rates of flow of different substances. In addition, they relate viscosity to distance travelled by sample substances.
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Comparing Properties of Elements & Compounds
In this elements and compounds worksheet, students review the physical properties of different compounds and elements using websites for information. This worksheet has 1 graphic organizer and 1 short answer question.
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How is the Strength of an Acid Determined?
Students study acids and how they can be measured. In this acid lesson plan students distinguish the properties that create strong and weak electrolytes.
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Corrosion & Rust
Students examine how and when rust and corrosion occur. In this corrosion lesson students complete an experiment to see why metals rust.
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Electronegativity
Students identify the type of bonding between two atoms of elements given their electronegativity values. They study the trend of electronegativity across the periodic table in small groups.
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