Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

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

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

Make environmentally friendly, chemical-free toothpaste using one of the most common, inexpensive pantry staples in the American kitchen: baking soda.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

This tried-and-true complexion treatment is a slumber-party staple that many people swear by.

Bring together science and style with this sweet homemade lip balm project.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

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

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Exponents can be tricky to learn. Fortunately this game provides plenty of multiplication practice for your math student!

Here's a simple, fun activity which will save you time and reinforce your child's math skills along the way.

In this project, different childproof containers are tested to see how childproof they really are.

Serve this seasonal carrot salad at Easter brunch this year, and it just might hop onto your family's list of healthy favorites.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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 examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.