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 asked to create a boat that can successfully float while holding 25 pennies.

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

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?

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

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

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.

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

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

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

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

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

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

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

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

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

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

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

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

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

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.

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

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

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

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

In this science fair project, young children notice and track changes in trees throughout the year.

This science fair project teaches students about wilting and browning of salad greens.