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To Smell or Not to Smell, That is the Ester
Young scholars 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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Organic Chemistry
In this organic chemistry worksheet, students answer 8 questions about organic molecules. They draw structural formulas for molecules, they identify classes of hydrocarbons in given diagrams and they draw specific components of given...
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Quantitative Determination of the Composition of Water-based Paints and the Correlation of Paint Properties to Pain Composition
Students perform a series of tests on water-based paints. In this chemistry lesson, students identify their different functions. They calculate paint density and fractional concentrations.
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Genetics DNA Replication
Students explore DNA replication. Beginning with a teacher led discussion, students examine inherited information, genes, and Deoxyribose Nucleic Acid (DNA). As the teacher models the structures of DNA, tells about the contributions of...
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Marbles and Momentum
Students examine the law of conservation of momentum. In this physics lesson, students play marbles in order to compare the mass of the marble and velocities effects. Students receive directions of the marbles game and collect data while...
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Nanofibers: Why Go Small?
Students explore the surface ratio of an object. In this surface area to volume lesson students construct a data table, make calculations and create a graph.
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Circuits
Students draw a schematic diagram of parts needed to build an op-amp. In this physics activity, students test the operation of their machine. They graph and analyze data using excel.
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Electromagnetic Spectrum/Spectroscopy
Students examine the electromagnetic spectrum and demonstrate the elements within. In this investigative lesson students complete a demonstration and calculate the energy of a photon.
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Super Glue Fuming of Latent Fingerprints
Students explore latent fingerprinting. They observe a supervised demonstration of the process that real-life crime scene investigators sometimes use to identify latent fingerprints. In addition, they brainstorm ways to improve the...
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Check Out Lights and Shields with Beads
Students explore Ultraviolet detecting beads and conduct several investigations with them. In this investigative instructional activity students participate in an experiment to see the harmful effects of UV light and discuss their...
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Observations and Inferences
Students observe how to distinguish observations form inferences. In this examining inferences lesson students list observations relating to the activity and discuss the importance of them.
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Reaction Rates and Catalysis in Ethanol Production
Students investigate alternative catalysts for the degradation of hydrogen peroxide. In this fermentation lesson students complete an activity that breaks down cellulose into sugar.
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What's The Matter?
Fourth graders accurately describe various states of matter, Through experimentation, they change a variable to create a new state of matter. Students record their observations about the way matter is changed and the changes that occur...
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Measuring Magnetic Field Strengths Using Ferrofluids
High schoolers explore the field of nanotechnology by examining magnetic field strength in ferrofluids. They use probes attached to a computer program to determine the relationship between magnetic field strength and magnetic field lines.
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Describing the Motion of a Battery Powered Cars
Learners explore distance a toy car travels by changing the amount of batteries used to power the toy car. In this force and motion lesson, students calculate the average speed of a car while investigating the power from various...
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The"Dirt" on Soil
Pupils examine the three different types of soil and their physical properties. In this soil lesson students design and implement a model of a water treatment plant.
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Forces and Motion-The Downhill Racer
Students calculate a toy car's velocity and acceleration. In this force and motion lesson, students build ramps and attach a dropper to a toy car, which is released down the ramp. Students calculate and graph velocity and acceleration...
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Float Your Boat
Students investigate buoyancy, displacement and density. In this flotation lesson students study the Archimedes' Principle, analyze data and draw conclusions.
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How Creepy!
Students observe and measure a model of slow down slope movement. In this graphing lesson students collect, record, and organize data that apply to models.
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Specific Gravity-The Relative Density of Liquids
Pupils explore a hydrometer. In this gravity lesson students construct a hydrometer and create a liquid density column.
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Where Did the Water Go? An Investigation in Scientific Methods
Students view a teacher demonstration that prompts them to solve a problem using the scientific method. In this scientific method lesson, students guess which cup has water and are presented with a conundrum when the water does not...
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Organic and Biochemical Compounds
In this organic and biochemical compounds worksheet, students identify compounds as alkanes, alkenes or alcohols. They compare and contrast the similarities of each. This one-page worksheet contains 6 problems.
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A Natural Habitat: What, How and Why
Students understand what a habitat is. They determine why a habitat is important to our environment no matter where it is located. Students observe and recognize natural habitats in their surroundings.
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Enzyme Lab
Learners examine the effects of specific enzymes on samples of liver tissue, muscle tissue (chicken), apples, and potatoes.