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Rubber Blubber Gloves
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In this experiment, learners work in pairs to create two gloves -- one that contains a layer of shortening (blubber) inside, and one that doesn't.
See the World Through Color-Filtering Lenses
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In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.
Invisible Sunblock
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In this activity, learners find out why some mineral sunblock rubs in clear. Learners compare nano and non-nano sunblocks and discover how particle size affects visibility.
Single-Cell Life
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In this activity, learners create a soil and water model of a single-cell life environment and study living microorganisms.
Easy PEAsy Seed Germination
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In this activity, learners determine the necessary conditions for pea seed germination.
Animals in a Grassland
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In this outdoor, warm weather activity, learners use sweepnets to search a grassy area such as a large lawn or field, collecting small animals to find as many different kinds of animals as possible.
Animal Ears
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This activity (page 2 of the PDF under SciGirls Activity: Horse Ears) is a full inquiry investigation into animal behavior and communication.
Corner Reflector
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In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.
Camera Projector
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In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.
Convection Current
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In this activity, learners make their own heat waves in an aquarium.
Self-Portrait Silhouettes: Activity 2
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In this activity, learners make a photographic image—without a camera!
The Great Plankton Race
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In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.
Exploring Size: Scented Balloons
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In this activity, learners use their sense of smell to explore the world on the nanoscale.
Bones
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In this health activity (page 5 of the PDF), learners will explore a unique connection betweeen the bones of the body.
Animal Scent
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This activity (on page 3 of the PDF under GPS: Animal Scent Activity) is a full inquiry investigation into animal behavior.
Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.
DNA Extraction from Cheek Cells
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DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique.
Double Horn
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In this activity, learners explore sound by constructing their very own instruments using PVC pipes, soda bottles, and a straw.
Muscle Fibers
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In this activity about human anatomy (page 20 of PDF), learners investigate the structure of muscles by comparing yarn and cooked meat.
Do Plants Need Light?
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.