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In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky.

Create a painting by blowing air out of a straw. Push liquid acrylic paint around on some watercolor paper by aiming short bursts of air onto the paint puddle.

Experiment with liquids of different densities and create liquid layers. For example, oil and water have different densities: oil floats on water because it is less dense than water.

In this math activity, learners play a game and use a variety of strategies to solve a hidden number problem (or missing factor). Learners practice their number and operations skills.

In this neuroscience activity (5th activity on the page), learners explore their sense of touch without using their senses of vision and hearing.

In this activity, learners create a hearing based memory game that they can share with friends.

In this math activity, learners create symmetrical designs for paper models of special blouses known as huipiles.

In this activity, learners play a card game that explores different size scales--macro, micro and nano.

In this activity, learners construct a home-made journal with simple, everyday materials.

No glue is needed for learners of any age to become marshmallow architects or engineers.

In this activity, learners create a kind of balance device using a wire coat hanger, some string, and paper cups.

In this activity, learners are introduced to division and fractions as they share snacks with a group of friends.

Make a quick and easy filter from household materials. A filter will catch any solids suspended in a liquid and filter them out. By using a filter, learners can discover amazing things.

In this math activity, learners use problem solving skills to find a middle seat for Mary at the movies. Learners practice dividing numbers and identifying the middle of a quantity.

Build a fruit fly trap out of a 2-liter plastic bottle and some rotten fruit! Fruit flies are easy to catch in warm weather. Once you catch some, you will be able to see their life cycle up-close.

Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

This activity demonstrates the importance of wearing a helmet to protect the brain. An egg is used to symbolize a head with the shell as the skull and the inside of the egg as the brain.

In this activity, learners will create their very own constellation.

How do you measure a bubble when it's floating? You can't really, but in this activity, learners can measure the diameter of the ring of suds a bubble leaves on a flat surface.

In this activity, learners make film canister rocket ships. A fin pattern is glued onto the outside of the canister, and fuel (water and half an antacid tablet) is mixed inside the canister.