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With little more than a flashlight, a straw, and a plastic lid, make an observatory so you can see the amazing colors in bubbles.

In this activity, learners discover what buoyancy is and determine the characteristics that make an object buoyant. Learners design, build, test, and evaluate boats made from a variety of materials.

In this physics activity (page 8-9 of the PDF), learners will explore wind energy. They will build their own windmill and see how energy from wind can be converted into a useable form.

This hands-on activity shows you how to build basic architectural shapes out of toothpicks and gumdrops.

Learners write or draw with white crayon on white paper. They look and feel to detect their marks on the paper. Then, learners paint over their paper with watercolor paint.

In this activity, learners investigate why apples turn brown. Learners discover that lemon juice interferes with the reaction that causes the browning.

In this activity, young learners will make their own flower seed nursery in an egg carton.

Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.

This activity (on pages 7-13) has pairs of learners survey an array of similarities and differences between them.

In this activity, learners take on the role of various parts of the cell in order to model the process of protein synthesis.

In this weather activity, learners build their own wind detector and test for the presence of convection currents in their indoor location.

In this activity, learners will explore surface tension, what it is, and how we can change it.

In this activity, learners measure the diameter of their water balloons, model an impact, measure the diameter of the “crater” area, and determine the ratio of impactor to crater.

In this activity, learners use multiplication skills to get groups of aliens safely back to their planet.

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.

Even fast computers are limited to how quickly they can solve problems. One way to speed things up is to use several computers at once.

In this demonstration, learners observe the effects of density and pressure by attempting to make "balloon kebabs." Learners will try to insert a wooden skewer all the way through an inflated balloon

Learners develop an understanding of air pressure in two different activities.

Learners build devices from rubber bands to test for invisible air pollutants.

In this activity, learners will explore how different colors of lights interact with objects around them. Will a blue object stay blue with a red filter?