Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

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

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Science fair project that determines whether moths are attracted to one color of light more than others.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This science fair project idea investigates whether plants can survive being frozen.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

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

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

This science fair project determines the quality of a given product.

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

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

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.