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

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Test your friends to find out if you can replicate the placebo effect's incredible results.

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This project examines whether people's taste perception is influenced by what they see.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This science fair project examines how seeds hitchhike on animals and clothing.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science fair project idea investigates how the shape of an object affects drag.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.