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Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

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

In this fun experiment, we'll find out how color affects heat absorption!

This science fair project idea experiments with spinning color wheels and optical illusions.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

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.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project idea investigates how magnetism can defy the force of gravity.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea examines whether boys and girls differ in reflexes.

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

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

This science fair project idea explores substances that cause a bubble to last longer.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.