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

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

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

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

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.

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

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

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

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.

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.

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.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

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

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

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

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

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

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

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

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

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

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

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

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.