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Here's a brain-challenging treasure hunt for your third grader, calling upon math skills with money and with decimals!

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

In this science fair project, students make their own rain gauge to measure rainfall.

Is your precocious third grader a Shakespeare in the making? Challenge her growing vocabulary with a group game that rewards her wordy ways

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Create a prefix-suffix flip-book and help improve decoding skills and vocabulary.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This biodiversity project examines the biodiversity in your own backyard.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This year, celebrate Father's Day with three hilarious outdoor family games.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

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

Teach your child Morse code, and a little bit of history that she'll pick up in a flash!

This science fair project teaches students about wilting and browning of salad greens.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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.