In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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 determines what household items are good conductors of electricity.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

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

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

This science fair project idea determines what household items are good conductors of electricity.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Make sourdough bread...and learn some colonial history and modern science in the process!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Science fair project that determines whether mass and weight are the same or different.