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Sedimentary Rocks
In this sedimentary rocks learning exercise, students conduct an experiment where they observe a shallow dish of water and table salt. Then they determine what causes the salt to leave deposits in the pan. Students also describe...
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Temperature Effects on Solubility
Students determine the solubility of salt in water at three different temperatures and graph the results. They use the following skills: observing, inferring, and graphing.
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Make An Egg Float!
Students analyze density. In this density activity, students experiment with floating an egg. Students discover that salt added to water changes the density of the water allowing an egg to float.
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Sea Ice
Learners observe the freezing times and temperatures of water with varying levels of salinity. They determine how icebergs form, how they act, and what they may be made of. They discover that salinity level affects the time it takes...
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Biocomplexity Lab Activity: Density and Buoyancy of
Pupils investigate how the density of water changes the buoyancy of
water. Students create a hypothesis about what will happen when placing the
egg into the water.Pupils can research online different bodies of water (The Red Sea, The...
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A Tool for the Environment
For this desalting salt water worksheet, students will read about three different methods of desalting sea water which includes distilling, crystallizing, and filtering. Students will describe these methods in three short answer...
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Sea Activities
Students explore the sea. In this biology lesson plan, student investigate sea creatures, and sea water. Students discover how to convert sea water into fresh drinking water as well.
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Salt Water Wedge
Students conduct an experiment to observe the properties of both salt and freshwater. They explain why freshwater will stay at the surface while salt water will travel up a river bottom because of density. Students also research the...
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Smoothing Out the Rough Spots
Fifth graders experiment to observe the changes created on a surface by mechanical action of water with varying amounts of mineral content and abrasive qualities. They write the predictions of their outcomes and describe all of their...
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Snow Crystal Picture
Students color a snow scene and use salt to make snow crystals. In this art activity students add Epson Salt to water and paint the snow background. After drying the salt with sparkle like real snow.
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Displacement Reactions and Acid/Base Reactions
In this chemical reactions learning exercise, students review the solubility rules for common salts. Students determine the molecular equation, ionic equation, and net ionic equation for specific reactions. Students calculate moles and...
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The Floating Golf Ball
Students explore density by floating golf balls. They explore having their golf balls float halfway in a container of water and discuss density and its realtionship to where the golf balls are floating. After adding food coloring, they...
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Ranking Salinity
Students explain the uses of titration in chemistry and in industry. In this chemistry lesson, students determine the concentration of an unknown solution using titration. They calculate the percent of salt in saline solutions.
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The Three E's - Exciting Energetic Electrons
Students perform flame tests on salts and record the electron configurations for various cations. They analyze and record the results using spectroscopes.
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8th Grade Earth Science: Density
Students draw upon their prior knowledge of the density of water and practice writing a hypothesis, making an observation, and analyzing data while watching a density demonstration.
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Greece: The Landscape
Pupils work in small groups to create a topographic map of Greece. They must include labeled line drawings of bordering countries and bodies of water. Students use salt and flour clay to make Greece three dimensional, showing the many...
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Investigating Convection Currents
Students examine how differences in the temperature and salinity of the water help create ocean currents. They perform an experiment which shows how temperature affects the circulation of ocean water.
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Homemade Ice Cream
Students investigate nutrition by creating ice cream in class. In this cooking lesson plan, students define the ingredients in ice cream and discuss how they form together to create a delicious treat. Students utilize salt, ice, milk and...
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Plasmolysis in Elodea Plant Cells
Young scholars microscopically observe various subcellular components. They determine the effects of different salt solutions on Elodea plant cells. Students explain the major function of a cell membrane and describe its structure.
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San Ignacio Lagoon: Economy or Ecology
Students debate over the development in the habitat of gray whales. In this role playing lesson, students will take on various roles in a debate over the development of a salt production facility in the San Ignacio Lagoon concerning the...
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Melting Ice
Students observe the melting of ice and explore the basic physical changes that occur. They gain information of how different substances change the rate of melting. Students discuss the properties of water and ice, the definition of...
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The First Farmers
Students show how constant irrigation, with repeated evaporation of water that left salts in the soil, eventually ruined much farming land in southern Mesopotamia. They discuss the idea that with the development of irrigation people...
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Minerals vs. Rocks
Fourth graders are introduced to the characteristics of a variety of minerals and rocks. As a class, they are shown rocks and minerals and asked to describe them as a geologist would. They work together to measure and record their...
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Why Use Money? Getting What We Need
Students learn the difference between purchase, barter, and payment for service, then explore how the Akan and North African people used a barter system to exchange gold and salt. They identify the most efficient ways of procuring your...
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