In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

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

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

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

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 project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

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

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

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.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

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

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

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

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.