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

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

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

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

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

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

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

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

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!

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

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.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

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

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

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

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

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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

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

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

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?

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