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Showing results 721 to 740 of 906
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Writing for Night Vision
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In this activity (page 1 of the PDF under SciGirls Activity: Forensics), learners will use a home video camera with a “night vision” mode to test how various inks appear outside the spectrum of visibl
Penny for Your Thoughts
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In this activity, learners will explore how metals react with each other. They will see these metals change before their eyes as they coat a paperclip with the copper taken from a penny.
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Wind Tubes
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In this activity, learners create and experiment with wind tubes. These tubes are a playful and inventive way to explore the effect that moving air has on objects.
Shrinkers
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Visitors use heat to shrink samples of polystyrene. They compare samples from containers that were shaped in different ways during manufacturing.
Concentrate: Concentrations and Reaction Rates
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Visitors incrementally increase the amount of iodate in three different test tubes containing the same amount of a starch solution.
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The Rain Man
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In this activity, learners observe the hydrologic cycle in action as water evaporates and condenses to form rain right before their eyes.
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Density Rainbows
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In this activity, learners explore the concept of density by pouring 5 different liquids into a jar. Food coloring is added if needed to give each liquid a distinct color.
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Find the Best Way to Clean Oil off Bird Feathers
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In this experiment, learners examine the way oil affects bird feathers and test different cleanup methods to find out which works best.
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Restriction Enzyme Digestion: How does it work? Why is it useful?
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In this activity related to plant biotechnology, learners use restriction enzymes to cut up DNA from a virus called Bacteriophage λ, a process known as restriction digestion.
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Puzzled Partners
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In this web-based activity, learners try to figure out who in an online chat room has their matching puzzle piece.
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Laser Jello
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In this activity, learners use gelatin as a lens to investigate the properties of laser light.
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Yeast DNA Extraction
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This laboratory exercise is designed to show learners how DNA can easily be extracted from yeast using simple materials.
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Carrying Charges: Testing for Conductivity
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Learners are challenged to create solutions that conduct electricity and make a buzzer buzz (or an LED light up).
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Safe in the Sun
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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.
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Saguaro Nest Cavities
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This activity (on page 3 of the PDF under GPS: Cactus Activity) is a full inquiry investigation into how some desert birds keep their cool.
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Flip
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In this amazingly simple physics activity (page 5 of the PDF), learners will explore how exerting a force on an object can give it kinetic energy and momentum.
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Milli's Insulation Investigation
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In this activity on page 2 of the PDF, learners test different materials to find out which is the best insulator.
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Sail Car Design
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This activity (on page 3 of the PDF under GPS: Sailboat Design Activity) is a full inquiry investigation into design optimization.
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Double Replacement Micro-Reactions
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In this chemistry activity, learners use common chemicals to examine reactions that occur between two aqueous solutions.
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From the Ground Up
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In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity.