How well can people recall what they have observed. Test your knowledge in this fun experiment.

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.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea explores whether talking to a plant will help it grow.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

This science fair project idea investigates the difference in reaction times between boys and girls.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea produces varying pitches of sound.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Learn whether writing things down really makes things easier to remember.

This project determines what category of person is most likely to be ticklish.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.