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.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

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

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

Help your kindergarten science maven explore the water cycle without getting everything wet.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

Your preschooler is familiar with the colors in their crayon box, but can they find these colors in the world? Take them on a scavenger hunt to find out!

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

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

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Create your very own scented hand sanitizer that will help your child to keep those nasty germs at bay!

Your kindergartener will make prints of his favorite fruits and vegetables and learn how to organize and assemble his very own book.

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

Follow in the footsteps of movie character legends as you walk your little one through the steps of becoming a junior archaeologist.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Learn all about balance and motion as your child designs a corn maze!

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Learn how different types of soil affect how animal tracks form in this experiment!

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

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.