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Using Ion Exchange Chromatography to Separate Proteins
Students explore protein purification by separating a positively charged molecule, lysozyme, from a negatively charged molecule, albumin, at neutral pH using ion exchange chromatography.
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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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Understanding of the Structure of an Amino Group
High schoolers 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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Exploring Magnetism
Twelfth graders experiment with magnets in order to visualize that magnets have a north and south pole, some materials can be magnetized, and magnetization occurs because of the magnetic moments of individual molecules in matter.
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Learning Lesson: Crunch Time
Students demonstrate the effect of heat on pressure. They use a 2-liter bottle and hot tap water to complete the experiments. They also discuss thunderstorm safety rules.
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Learning Lesson: Sweatin' to the Coldies
Students participate in a demonstration to show the change of water vapor to a liquid. They discuss the three states of matter. They examine flash flood safety to end the lesson.
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Einstein's BIg Idea
Students discuss what the m in E=mc2 represent. They relate that mass in a chemical reaction is always conserved. Students convey that atoms rearrange themselves in chemical reactions to form different molecules and compounds.
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Extraction of DNA from White Onion
Students conduct lab test with minced onion to determine where chromosonal DNA is located within the cell, and whether or not it can be extracted.
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Urban Impact on Chollas Creek (California): A Field Study
Students, in groups, take samples from a creek and keep a field journal on their samples. They also perform tests on their samples.
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Autumn
Students examine the cycle of nutrients in a forest. They research the concepts of decomposing and recycling within a forest.
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Air Pollution Over Where?
Students predict the movement of an air borne pollutant using their understanding of air currents. They determine which governments and/or communities should be contacted to be forewarned. They also explore the properties of their...
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Making Sense of Density
Students identify the concepts of density, mass, and volume that define the property of a substance. They also determine that the properties of materials, such as, density and volume, can be compared and measured by using rulers,...
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Grating Spectrometer
Students calculate the Balmer series. For this physics lesson, students observe hydrogen lamp spectra using spectrometers. They calculate wavelength and compare them with their theoretical calculations.
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Physical Science Project-Atom
Fifth graders investigate atoms. In this atom instructional activity, 5th graders investigate the parts of an atom. Students explore atom numbers and determine the number of electrons is in each atom.
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Losing An Island
Students examine carbon dioxide and determine the impact of greenhouse gases on the earths spheres. In this pollution lesson students complete a lab activity to see the impact of gases on the environment,
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Drifting Continents, Dynamic Results
Pupils plot earthquake and volcano data using a Compass Rose Plotting. They explain the relationship between plate movement and connection. They draw conclusions that earthquakes and volcanoes occur in predictable locations.
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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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Water 2: Disappearing Water
Students will observe the amount of water in an open container over time and also examine the amount of water in a closed container over time. They then will compare and contrast the sets.
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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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The Code of Life
Students study genes, DNA and medical research. They watch "The Code of Life" video and answer discussion questions regarding the transcription and translation of DNA and how errors in these processes and mutations in DNA can produce...
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Solar
Students study solar energy. For this renewable energy lesson students complete several lab activities using different controls and variables.
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Things That Glow
Third graders study the concept of light as an energy source. In this energy lesson students participate in a lab that show them the concept of light as an energy source.
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DNA Replication
After viewing this presentation, students create a complete set of notes to support their learning of DNA replication. Each slide has information on a step in DNA synthesis process. The slides focus primarily on the processes rather than...