In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

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.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

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

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.

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

Learn whether writing things down really makes things easier to remember.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this activity your child will create their very own marble maze!