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Showing results 921 to 940 of 1301
Rainbow Film
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In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.
LEGO Robots
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This activity (on page 2 of the PDF under GEMS Activity) is a full inquiry investigation into technology design and testing.
Loony Balloons
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In this activity, learners investigate how changing the center of gravity of a balloon affects how it travels. Learners fill a balloon with a little bit of water and insert into an empty balloon.
Beachcombing
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In this outdoor activity, learners become beachcombers as they walk on a sandy beach in search of evidence of life.
Built in Stopwatch
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In this activity (3rd on the page), learners investigate circadian rhythms by examining how well people do with estimating time.
Lifting Lemon
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In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.
Super Soil
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In this outdoor activity, learners make their own organic-rich soil. Depending on where this activity is done, learners will probably discover that their local soil is low in organic matter.
Mars from Above: Viewing Volcanoes
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In this activity, learners create volcanoes like those they have examined on Earth and Mars through images taken by spacecraft.
Cylindrical Wing
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In this design and physics challenge, learners construct a cylindrical wing, fly it, make modifications, and determine how the changes affect flight patterns.
M&M's in Different Sugar Solutions
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In this activity, learners investigate whether having sugar already dissolved in water affects the speed of dissolving and the movement of sugar and color through the water.
The Shadow Knows I
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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.
Drawing Conclusions
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In this weather forecasting activity, learners determine the location of cold and warm fronts on weather plot maps.
Environmental Chemistry
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In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.
Marshmallow Puff Tube
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In this demonstration/activity, learners observe as a regular size marshmallow is blown through a tube made from a manila file folder.
Walk On Water Bugs
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In this activity (on pages 29-35), learners examine water pollution and filtration.
Stroboscope
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In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.
Signs of Change: Studying Tree Rings
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In this very hands-on lesson, learners will investigate dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what possible
Chromosome Models: Karyotyping
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This activity was designed for blind learners, but all types of learners can have a tactile opportunity to construct a karyotype, an organized model of an organism’s chromosomes, conveying the chromos
The Water Cycle
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Did you know that the water we use today is the same water found on Earth millions of years ago? The Earth constantly uses and recycles water in a process called the water cycle.
Breathing Blue
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In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.