Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This project compares the strength of one, two, and three-ply toilet paper.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

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

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

Have your child kick off their summer vacation by making a miniature water slide!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

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 science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.