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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.

Find out whether matte or shiny nail polish lasts longer.

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

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Check out this cool science fair project on identifying rocks and minerals for kids.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

Transform your uncomfortable wooden shoes into charming mini planters!

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project idea investigates the hardness property of minerals.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project that examines condensation and the conditions needed in order for dew to form.