Curated OER
To Float or Not to Float - A Lesson on Density
Students define density in their own words. In this physics lesson plan, students calculate density using mass and volume. They explain why some objects sink and some float.
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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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Grating Spectrometer
Young scholars calculate the Balmer series. In this physics instructional activity, students observe hydrogen lamp spectra using spectrometers. They calculate wavelength and compare them with their theoretical calculations.
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Can You Make A Penny Float?
Students explore the concept of density by trying to make a penny and other materials float.
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Oxidation And Corrosion
Students sort tarnished metals by type and experiment with different cleaning solutions and techniques to restore them to their natural color and shine.
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Understanding of the Structure of an Amino Group
Learners review the characteristics of acids and bases. They examine the structure of an amino group and compare amines to ammonia. They work together to develop the concent of polymerization.
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Good Vibrations
Students demonstrate sound waves and make changes in the waves
resulting in changes in pitch. Students associate changes in pitch in various "musical instruments"with size and shape and the sound waves they produce.
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Which Wrap Is Wrapped Right?
Students investigate the integrity and strength of different types of food wraps. They test the wraps and create a graphic organizer for the data. Once it is organized then a lab report can be written. The lesson contains background...
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Where Does the Water Around Our School Go?
Students in groups, map quadrants of the area around the school and make predictions about the direction of waterflow and zones of accumulation that will occur when it rains. Then when it does rain they check to see if their prediction...
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Chemical Bonding
Eighth graders identify the three main types of chemical bonds. In this chemistry lesson, 8th graders draw Lewis dot diagrams of elements and determine the bond formed. They create a model water molecule.
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Pauli's Magical Water
Students predict the shape of molecules using VSEPR theory. In this chemistry lesson, students differentiate a polar and nonpolar molecule. They discuss why water's polarity is very important.
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Physical and Chemical Changes
Eighth graders distinguish between physical and chemical change. In this chemistry lesson, 8th graders observe a series of demonstrations showing physical and chemical changes. They identify the signs that a chemical reaction took place.
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Density
Learners, in groups, design a procedure to calculate the mass of gas molecules in the classroom by measuring the volume of the classroom and researching the density of air. They apply changes in air density with altitude and effects on a...
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Wig-wag Physics
Learners make observations on the effects of a small, medium and large weight on the movement of a wig-wag apparatus. They use their observations to develop a generalized inference of the effect weight on movement patterns.
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Nature of Game Balls
Fourth graders see how, when balls are dropped from the same height, mass and size affects the motion of the balls.
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How Clean are the Laboratory Tables?
Students participate in an experiment in which they test the cleanliness of the lab tables. They practice using different materials and analyze their results. They answer comprehension questions to end the activity.
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Extraction of DNA from White Onion
Students investigate techniques involved in extracting and isolating DNA. Students extract and observe onion DNA.
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How Can We Determine the Concentration of an Unknown Solution?
Students participate in experiments to help them determine the concentration of an unknown solution. They graph a standard curve and plotting the relationship between the concentration and the amount of light needed. They discuss their...
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Thin-layer chromatography
Students produce chromatograms of various vegetable extracts and standards. Using a flat bed scanner, they create a database of the results.
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How Big is a Molecule?
Students estimate the size of a molecule of oleic acid. They conduct an experiment using chalk dust, water, and oleic acid, solve various calculations, and answer discussion questions.
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Devising a Set of Experiments to Test Water for Dissolved Substances
Students work together to test water samples for pollutants. They design data tables to collect and record their observations. They complete discussion questions to end the activity.
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What is the Thermal Depolymerization Process?
Young scholars examine the differences between Boyle's Law and Charles' Law. They discuss the concept of thermal depolymerization. They answer discussion questions to end the lesson.
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Making New Electricity
High schoolers investigate the concepts of energy conversion and conservation. They research the history of energy conversions into electrical energy. They design experiments in order to replicate a conversion of energy into electricity.
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Stellar Spectral Fingerprints
Students listen as the teacher introduces Newton's early discovery of the diffraction of light. They use multiple sources of light (fluorescent, incandescent, sunlight, etc) to bend the light. They first use a prism then a diffraction...
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