This science fair project idea determines which method of hand cleansing is the most effective.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Help your child hunt and capture bugs to observe to practice important science skills and satisfy her curiosity simultaneously!

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

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

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Identify vitamin C in fruit juices and to determine which of the following juices contain the most vitamin C

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

In this middle school activity, your child will learn how to press plants and create her very own herbarium, or plant library! Here's how:

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

How much water comes out of snow? Explore this timely question with your kindergarten scientist with this easy winter experiment.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.