The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

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

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

The project researches how lubricants affect the mechanical advantage of a pulley.

This science fair project evaluates if and how eating a large meal affects ability to perform mental tasks.

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

This science fair project idea measures physical dexterity as a function of temperature.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea assesses the effect of music on work performance.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Determine whether the application of Febreeze will lower the bacterial count.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

This project examines which style of central-air system filter traps the most particles from the air.

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.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

This project examines whether humans can intuitively grasp numeric values greater than three.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.