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

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

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

In this design challenge, your child will make a bottle rocket using typical household items.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Use a dichotomous key to identify plants or animals.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

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

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

In this art project, budding entomologists will create a larger than life, moveable puppet version of a praying mantis.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Word color association is just a fancy way to talk about the way we connect colors with words.

Here's a guide to starting a community clean-up project from scratch.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Explore the neural and mental mechanisms at play in mental imagery.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This science fair project idea measures physical dexterity as a function of temperature.

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