Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

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

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.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

Use popcorn in this tasty experiment to explore the five senses at home with your kindergartener!

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

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.

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In almost every preschool classroom is a sensory table. Learn how to make one at home!

Make an edible play dough with your child to help her develop her sensory and motor skills.

In this activity, your child will be challenged to make a tower using paper cups.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

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

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Make homemade lemonade in a baggie with your preschooler with this fun and easy recipe.

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

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Here's a simple science activity that will help your child better understand how wells bring us water.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

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 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.