Curated OER
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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Chlorophyll
Middle schoolers use thin layer chromatography, TLC, to separate various pigments found in plants.
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Using Chromatography to Identify Unknowns
Learners are introduced to the concept of chromatography. They practice using new vocabular and observing experiments. They answer discussion questions to end the lesson plan.
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Ice Cream
Students are shown an experiment making ice cream while discovering the freezing point depression. There are questions for students to answer after the demostration.
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Generate a Calibration Curve for Chlorophyll a
High schoolers measure and graph the absorbance of light by chlorophyll at a specific wavelength versus chlorophyll concentration. They are given an unknown and determine its concentration from their calibration curve. Students become...
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To Smell or Not to Smell, That is the Ester
Students explain the basic concepts of polymerization. Students participate in a lab to create a crude preparation of carboxyl esterase and test its effectiveness in reducing the residual monomer in an emulsion such as paint.
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Crime and Young People
Students read the story, "Police in Schools". They view a list of common offences committed by young people and identify the victims of these offences and consider how the offence would affect those people.
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What's the Matter? Where Did it Go?
Eighth graders analyze questions posted on a large poster in the room and work in groups to record their response to the question on paper, rotating to the next question after two minutes have passed. They review the characteristics of...
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Properties of Matter
In this science activity, learners find the words related to matter and the answers are found by clicking the button at the bottom of the page.
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Chemical Bonding and Shapes of Molecules
In this chemical bonding learning exercise, students review the different types of bonds and calculate the number of valence electrons in molecules. This learning exercise has 11 matching and 15 multiple choice questions.
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Polymerization Experiments
Students explain the process of polymerization. For this chemistry lesson, students produce carboxylesterase in the lab. They test its effectiveness in removing the by-product odor.
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Flower Pigments
Middle schoolers experiment with Thin Layer Chromatography to separate pigments found in flower petals.
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Ice Cream
Students explore the concept of the colligative property. Through experimentation, students lower the freezing point of a liquid in order to create a solid by using household ingredients to create ice cream.
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Moore S Word Search Puzzle
For this literacy worksheet, students find the words that are in the word search puzzle that focus upon the vocabulary that is from the theme of the sheet.
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Water Chemistry
Students engage in a lesson that is concerned with the concept of water chemistry. They conduct research using a variety of resources. Students also consider an experiment to observe how water has the abiility to exist as three different...
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Microscopes and Crystals
Students observe crystals under the microscope. In this science lesson, students compare how the crystal look like using their eyes, hand lens and microscope. They identify the type of crystal based on the amount of light they allow to...
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Isolation of Synthetic Chemicals from Plant Leaves
Students isolate and identify a dye, which represents a synthetic pesticide, from plants.
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How Do I Get a Pure Sample of the Molecules I Make?
Students initially engage in online research and consult print materials to identify a compound to produce. Once a selection has been made, individually, students conduct lab experiments to isolate substances. The end product is a...
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Particle Theory of Matter
In this science word search worksheet, learners identify and locate words in a puzzle that relate to particle theory of matter. There are 24 words to locate in the puzzle and spell correctly.
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Salt & Sand
In this science worksheet, students find the terms that are related to the concept of the ocean salt and sand. The answers are found by clicking the link at the bottom of the page.
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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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Life Processes and Water
Students examine the function and nature of water as it effects all living things.
CK-12 Foundation
Ck 12: Physical Science: Solute and Solvent
[Free Registration/Login may be required to access all resource tools.] Definition of solute and solvent and examples. Water as a solvent and how ionic and covalent solutes dissolve in water.
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