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Show Your Colors!
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In this family or group activity, learners conduct a chromatography experiment to reveal the colors that leaves "hide" under their green pigments.
Water Treatment
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Water treatment on a large scale enables the supply of clean drinking water to communities.
Using Bubbles to Explore Membranes
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In this activity, learners use bubbles to investigate the structure and unique properties of cell membranes. Bubbles serve as macroscopic models that mimic the cells' phospholipid bilayers.
The Old White Sheet Trick: Light and Insect Behavior
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In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.
I Can't Take the Pressure!
Learners develop an understanding of air pressure in two different activities.
Delicious Smelling Chemistry
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In this activity, learners use household materials to investigate and explore their ability to smell an odor.
What's Hiding in the Air?: Rubber Band Air Test
Learners build devices from rubber bands to test for invisible air pollutants.
Use Clues to Solve an Ice Mystery
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Learners explore the variables that affect the properties of ice and the places where different types of ice are found.
Giving Water the Treatment
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In this ecology activity (page 8 of the PDF), learners explore how to filter contaminated water using a variety of materials.
Tools of Magnification
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.
Airfoils
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In this experiment, learners discover how an airfoil creates lift. Learners use simple materials to build an airfoil and test it at different angles to investigate Bernoulli's principle.
Reflective Solar Cooker
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In this activity, learners use the Sun's energy to cook marshmallows. Learners construct the solar oven out of simple everyday materials.
Light Bulb Challenge
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In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.
Leapin' Lizards
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In this outdoor activity, learners first explore lizard feeding behavior by creating a "lizard rig" to dangle different objects in front of live lizards and see which objects the lizards try to bite.
Genetics the Easy Way
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In this activity, learners make critters out of recyclables and apply the rules of mathematics to solve genetics problems.
Soccer Kicks
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This activity (on page 2 of the PDF under SciGirls Activity: Soccer Ball Kick) is a full inquiry investigation into transfer of motion.
The Senses of "Unknown Creatures"
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In this activity, learners use earthworms as "unknown creatures" from the South American jungle to find out how animals use senses.
Outbreak!: Investigating Epidemics
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A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution.
Lift Experiment
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In this experiment, learners investigate how the size of a wing affects lift. Learners count the number of pennies an egg crate plane wing can hold until the plane will no longer fly.
No-Slip Grip
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In this physical sciences activity, learners explore friction. Learners investigate the factors that affect the force required to move an object.