Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea examines the reason boats are shaped and engineered.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea determines what household items are good conductors of electricity.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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.

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

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

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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.

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

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.