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

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

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.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

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

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

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

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

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.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.