Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This project examines whether people's taste perception is influenced by what they see.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

This experiment determines the distribution of darts around a bulls eye to simulate the probability of an electron's location in its own cloud of electrons.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this science fair project, students test how objects float and sink in liquids of different densities.

In this experiment you will evaluate whether praise improves athletic performance.

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

This project investigates the affect of storage temperature on microwave popcorn.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?