Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

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

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.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

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.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Learn all about balance and motion as your child designs a corn maze!

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this project students experiment with making music using only glasses of water.