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

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 plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

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

In this project children practice the scientific method while playing with puffy paint.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

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

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

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

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.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

Using a toy race car kids create a visual model of the Doppler Effect.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Invite your kindergarten marine biologist to practice in scientific identification and categorization while creating a lovely treasure box.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

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.

With some cookie dough and ordinary household objects, let your kindergartener explore how fossil imprints are made.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.