Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

This science fair project teaches students about wilting and browning of salad greens.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Find out which type of sponge holds the most water.

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

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea demonstrates that plants give off water.

In this science fair project, students use the streak test to tell minerals apart from each other.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.