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Showing results 41 to 60 of 640
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lambda DNA Fingerprinting Simulation
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The purpose of this lab activity is to demonstrate (through simulation) how DNA fingerprinting (or DNA profiling) might be used to solve a crime.
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Jam Jar Jet
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In this activity, learners create a "Jam Jar Jet" based on Francois Reynst's discovery of a pulsejet engine, which uses one opening for both air intake and exhaust.
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Kelp Critters
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This marine biology activity (on pages 11-17) introduces learners to kelp (seaweed) forests that grow in the ocean and are home to many species of sea animals.
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Bicycle-Wheel Gyro
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In this activity, a spinning bicycle wheel resists efforts to tilt it and point the axle in a new direction.
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Fragile Waters
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In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.
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Liquid Body Armor
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In this activity, learners explore how nanotechnology is being used to create new types of protective fabrics.
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Spherical Reflections
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In this art meets science activity, learners pack silver, ball-shaped ornaments in a single layer in a box to create an array of spherical reflectors.
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Exploring Tools: Special Microscopes
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In this activity, learners use a flexible magnet as a model for a scanning probe microscope (SPM). They learn that SPMs are an example of a special tool that scientists use to work on the nanoscale.
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Bready Bubble Balloon
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Learners discover the bubble power of living cells in this multi-hour experiment with baker's yeast. Learners make a living yeast/water solution in a bottle, and add table sugar to feed the yeast.
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Luminol Test
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Learners mix a solution containing luminol and copper with a fake blood solution. A chemical reaction between the luminol solution and fake blood (hydrogen peroxide) show learners a blue glow.
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Water Clean-up
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This is an activity (located on page 3 of the PDF under Water Clean-up Activity) about the use of reduction agents to decontaminate ground water.
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A Place in Space
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Learners construct and use a "real" 3D coordinate system out of balsa wood and foam core. They will then be able to locate coordinates in space.
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Water Body Salinities II
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In this activity, learners discuss the different salinities of oceans, rivers and estuaries.
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Laser Lissajous: PVC Version
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In this activity, learners use a laser pointer and two small rotating mirrors to create a variety of fascinating patterns, which can be easily and dramatically projected on a wall or screen.
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A Model Parasite
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In this detailed activity (on pages 9-18), learners investigate the body parts of a parasitic ascaris worm by making and dissecting clay models.
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Inverse Functions: Pennies, Pressure, Temperature, and Light
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The major goal of this math lesson is to have learners collect data from a variety of experiments, determine what models best fits their data, and explain why their models are best.
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Formulas Poker
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In this adapted version of poker, learners practice writing chemical formulas by playing this chemistry card game.
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How Plants Grow
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In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.
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Divers
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Learners experiment with a 2-liter plastic bottle containing water and four “divers." The divers consist of open, transparent containers with the opening points downward.
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Composting Bioreactor
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In this activity (page 19 of the PDF) learners will create a soda bottle bioreactor by exploring the science of composting, comparing variables such as reactor design, moisture content, and nutrient r