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Sky Floater Challenge
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In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.

Motorized Car
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In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet.

The Crayon Rock Cycle
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In this activity, learners use crayons to draw conclusions about rocks and the rock cycle.

Fruity-Glows: Pictures of Health on a Microarray Canvas
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In this activity (page 12), learners apply the concepts of pixilation and pointillism to the world of biomedical science.
Trees: Buds and Twigs
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In this hands-on nature activity, learners observe the emergence of leaves and flowers. Branches from trees and bushes are collected in the early spring, brought indoors, and placed in water.

Holding Charge
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In this trick, learners discover how to stick a straw to the palm of their hand, window door, or anywhere using static electricity.

Blowin' in the Wind
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In this environmental engineering activity, learners build windmills using everyday items. The first challenge is to build windmills that spin when placed in front of a fan.
Look Around: Hunt For Sizes, Shapes and Numbers
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In this activity, learners will participate in a scavenger hunt involving sizes, shapes, and numbers. This activity works well with a whole group, individuals, or families.

Build a Roller Coaster
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Learners design and build a roller coaster using simple materials. Learners experiment with potential and kinetic energy to get a marble to follow a track into a cup.

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.

Puppet Power
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In this mechanical engineering activity, learners design shadow puppets with moving parts and use them to tell stories.

Dinosaur Bone Experiments
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This activity features two connected hands-on activities about dinosaur bones.

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.

Amphipods: More than Mud
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In this data analysis and environmental science activity, learners examine the effects of pollution on amphipods using data from the Chesapeake Ecotox Research Program.

Shake a Shrub
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This is an activity where learners will discover what types and how many insects live in their own backyard.

Sustainable Grazing
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In this activity, learners investigate the food, water, and space needs of common livestock animals.

Grab and Go
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In this engineering activity, learners design and build a mechanical arm to lift a small item.

How to Test The Strength of Shapes
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In this activity, learners explore the strength of different shapes. Fold paper into triangles, squares, and other shapes, then experiment with how much weight they can hold.

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.

Prepare for a Construction Zone Field Trip
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In this activity, learners explore work, forces, simple machines, and construction. This lesson guide includes simple ways to demonstrate these principles as well as hands-on activities.