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What is Energy?
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In this exploratory activity, learners experiment, observe and determine how various toys change from one form of energy to another.

Population Game
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In this outdoor game, learners simulate a herd of deer trying to survive in an area called the "home range." Learners explore the concept of "carrying capacity"—what size population of an organism can

Prepare for a Dock Shop Field Trip
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In this activity, learners explore what makes a boat float and sink. They examine and test various objects to determine why objects float or sink.

Chicken Wing Exploration
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In this activity, learners explore cooked chicken wings and identify the various parts including: bones (radius, ulna, humerus, shoulder joint, elbow joint), tendons, and cartilage.

How Do We Convert Mechanical Energy into Electrical Energy?
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In this activity, learners use a compass, powerful magnet, and copper magnet wire to build a special generator known as a dynamo.

Water Exploration Station
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In this activity (located on page 3 of the PDF), learners investigate the way water moves and how we can control and direct water.

Disappearing Crystals
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Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.

Whodunit?
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In this fascinating and fun experiment, learners use chemistry to identify a mystery powder and to solve a "crime," a process similar to that used by real forensic scientists.

Mountain Man Measurement Rendezvous
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In this math lesson, learners participate in several activities where they apply measurement skills.

Ocean Home: Swimming Fishes
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In this activity, learners model, on a human-sized board game, how changes in water temperature may affect fish distributions and, ultimately, fisheries.

Spectroscope
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In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.

Tempest in a Teacup
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In this hands-on activity, learners determine the types of chemical reactions achieved when combining different household products.

Cup Draw (Low Tech)
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In this activity, learners construct drawing machines using a cup, some markers, and a battery pack. The markers act as "legs" for the machine, making a drawing that records as it moves.

Light Bulb Challenge
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In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.

Exploring Ramps
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This guide features three related ramp explorations in which learners investigate the following science concepts: when placed on a ramp, some objects roll, others slide, and others stay put; the shape

Give Me a Brake
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In this activity, learners explore the concept of how brakes can stop or slow mechanical motion.

Sand Grain Observations
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In this activity (on page 1 of the PDF under SciGirls Activity: Earthquakes), learners will use a magnifier to carefully examine samples of sand from different locations.

Bring It Home: Animal Tracks
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In this activity, learners create handmade animal track stamps. Learners research animal tracks, draw the shapes on moleskin, and then stick the shapes onto blocks of wood to make stamps.

Junk-in-the-Box
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In this outdoor activity, learners explore how a surprising number of animals use human-made litter, such as cans and crumpled paper, to find food and shelter in their environment.

Keep Out!
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In this technology activity, learners build an "alarming" doormat to keep siblings out of their rooms. Use this activity to teach learners about circuits, switches, and sensors.