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

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Demonstrate which cooking method gets rid of the most fat.

Find out if most people can distinguish the difference between tones on different instruments.

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

Discover how and which salt melts ice the quickest.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project examines the different composition of fungi and plants.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Determine how good we are at direct and indirect observation.

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

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

This science fair project idea explores if people with cool skin tones prefer cool colors and people with warm skin tones prefer warm colors.