This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

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

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

Discover which method for odor removal words the best for stifling refrigerator odors.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

In this project, different brands of microwave popcorn are tested and compared.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

This science fair project idea attempts to develop a new or improved eco-friendly packing material.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

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

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.

This science fair project determines how age affects the speed that someone can change the focus of their eyes between near and far sightedness.

In this experiment, students create music with subliminal messaging to try to influence people's decision-making.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.