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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea investigates whether plants can survive being frozen.

This project explores ways to prevent static electrical shocks.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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 compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.