Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Get back into school with this exciting architecture exploration! In this craft activity your child will research, draw, and build his own school.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Here's a place mat your second grader can create, based on the classic frontier tradition of patchwork quilting.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

This science fair project idea identifies clouds as a means of predicting the weather.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Do you think heat can affect a plant's growth rate?

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

This fall, bake some festive caramel apple cupcakes with your second grader and help her build her math skills while you're at it!

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Pumpkin carving party activities are great for a pre-Halloween party. Try pumpkin carving party activities, including jack-o'-lantern ideas and fall recipes.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

This project concerns activity happening millions of miles away, on the sun.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.