In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

Put those fall leaves to use with this fun art activity. Kids paint and print leaves, to make a beautiful tablecloth, perfect for your next fall celebration.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

Help your child add some flair to the family garden with pencil pinwheels!

Use sticks and stones to create create an outdoor version of tic-tac-toe!

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This easy project for little hands uses mushroom spores to make an imprint of the mushroom, and the result is very beautiful.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Plant a mini herb garden and teach your child about science and nature.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!