Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

This science fair project idea examines whether people can decode scrambled messages.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Try this arts and crafts activity with your preschooler: make bread from yeast dough to teach her about the science behind bread baking.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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.

Find out whether matching resonant frequencies can cause objects to shatter.

Make this easy composting dessert and then enjoy the yummy results!

This science fair project idea tests the efficiency of short term memory.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

Use pepper and soap to discover some fun facts about the properties of water.

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?

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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?

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

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

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Discover the wonders of simple clay by pressing flowers into a modeling medium!

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

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