Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This activity is a fun way for your first grader to learn about how veggies help your body while being creative with art and drama. Here's how to get started.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Challenge your learner to design and build a city of their own in this creative engineering activity.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

The goal of this science fair project is to identify the galactic center of the milky way using globular clusters, as found through Google Earth.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Think about the adaptive utility of an important aspect of our physiology.

Science fair project that determines whether moths are attracted to one color of light more than others.

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

This biodiversity project examines the biodiversity in your own backyard.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?