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.

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.

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

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?

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.

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.

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.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.