This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

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

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

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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

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

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.