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.

The project idea is to understand how sugar effects brain chemistry.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

This science fair project will investigate a type of sustainable development project.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Here's a simple science activity that will help your child better understand how wells bring us water.

Science fair project that determines whether brain size is correlated with intelligence.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Use a dichotomous key to identify plants or animals.

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.

Cleaning can be a chore, but not with this sudsy experiment!

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Check out this fun science project to explore the relationship between solubility, drug absorption, and time required for a drug effect to become apparent.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?