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Cardboard Automata are a playful way to explore simple machine elements while creating a mechanical sculpture.

In this activity, learners build their own sound machines and explore the interplay of motion and sound.

In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a

In this activity, learners explore electronics and motion by making a Scribbling Machine, a motorized contraption that moves in unusual ways and leaves a mark to trace its path.

Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

In this activity, learners explore the concept of rotational equilibrium. Learners work in teams to estimate and determine the force within a mobile design.

Use the Zoo Calendar (page 1 of PDF) to involve learners in interdisciplinary, whole language, and writing activities about ecological concepts.

In this activity, learners will dip different items in paint and then roll those items down a ramp. Learners will use science process skills such as observations and experimenting.

In this activity, learners will create glitter bottles with adult supervision. These are a fun way for little ones to practice observing and making comparisons.

In this activity, learners investigate color vision as well as plan and conduct their own experiments.

In this activity, learners will use bubble wrap to print patterns on paper and experiment with mixing colors.

In this activity, learners will create their own bubble solution. Learners will explore chemistry, geometry and trial and error through this activity.

In this activity, learners will experiment with water- and air-filled balloons as a way of dampening sound before it reaches their ears.

In this activity, learners explore physics by building a catapult that launches marshmallows with household objects.

In this activity, learners explore the concepts of density and basic chemical reactions as they create a homemade lava lamp effect using water, oil, food coloring, and Alka-Seltzer tablets.

In this activity, learners investigate the basic crystal structures that metal atoms form.

In this activity, learners construct bug models that "jitter" all over the table with just a battery, motor, and counterweight.

In this activity, learners make a photographic image--without a camera!

In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.

In this activity related to nanotechnology, learners observe some of the effects that result from creating a thin layer of material several nanometers thick.