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.

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

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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.

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

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.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

In this experiment we will be determining whether birds prefer certain colors of seed.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Find out whether putting something on top of a plant will inhibit its growth.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.