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Physical And Chemical Changes
In this physical and chemical change worksheet, students solve 13 clues in a crossword puzzle focusing on rates of chemical reactions and changes in the state of matter.
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Activity #1 Reactions: Chemical or Physical?
Middle schoolers distinguish between physical changes and chemical changes. They comprehend that chemical reactions produce new substances with compositions and properites which are different than those of the starting materials. ...
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Waterproof Paper
Students explore matter through the concept of displacement. They perforrm an inquiry experiment with a glass, paper and a bucket to demonstrate that gases take up space.
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Liquid Layers
In this density worksheet, students investigate what will happen when various liquids with different densities are put into the same container. They hypothesis and make observations. Students answer 4 questions about their investigation...
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Floor Polish Experiments
Young scholars compare various brands of floor polishes and test their durability and appearance. In this floor polish activity students test different polishes and check performance.
University of Southern California
Mastering Microbes
Small but mighty! Learners explore the role of microbes in a healthy ecosystem. An engaging activity asks pupils to design an aquaponics system that demonstrates that healthy microbes are necessary to maintain the ecosystem.
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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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Types of Rock
In this rocks worksheet, students compare and contrast the 3 types of rocks: sedimentary, igneous, and metamorphic. Students complete 1 graphic organizer.
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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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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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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.
Creative Chemistry
Acids, Alkalis and Indicators
In this pH instructional activity, learners describe acids and alkalis. They also determine whether substances are strongly acidic or alkaline. To determine the pH of given substances, learners use the color of universal indicator paper....
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Classification of Changes
In this classification of changes worksheet, students identify each example as either chemical or physical changes. Students also classify other examples as either element, compound, solution, colloid, or suspensions. In the other...
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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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Fun Crystal Activities
Students complete a variety of activities to learn about crystals. In this crystals lesson plan, students paint with a crystal solution, pan for crystals, grow crystals, and more.
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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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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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How to identify a physical change from a chemical change
Students identify the difference between some physical and chemical properties and compare some physical and chemical changes. They design an experiment to distinguish between a physical or a chemical property of their choice.
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Acid-Base Indicator Paper
Students are able to prepare and use pH indicators in paper form. They find out the color of the indicator paper plus test solution may change with time. Students use red cabbage to use for the indicator.
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Activity #15 The Snowy Christmas Tree
Students weigh out the proper amount of silver nitrate and prepare the silver nitrate solution. They observe what occurs when pure copper is added to silver nitrate solution. Pupils determine whether the change in the appearance of...
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