Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This science fair project idea explores the different properties & interactions of sugar molecules.

Science fair project that determines whether mass and weight are the same or different.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Find out whether matte or shiny nail polish lasts longer.

This science experiment tests if dog saliva can really help heal wounds.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea investigates the difference in reaction times between boys and girls.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair project idea examines whether boys and girls differ in reflexes.

Find out whether a longer airplane will fly farther or a wider paper airplane.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea determines the probability of a coin landing heads or tails.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.