There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

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

Free science fair project idea examining how different types of water affect plant germination and growth.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

What's a crater, and how does it happen? Here's a kindergarten experiment with safe, nontoxic ingredients.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.