This science fair project investigates why the number of visible stars changes from place to place.

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

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Make a spring collage with your child to get them outside and those creative juices flowing!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project idea explores whether white light can be separated into different colors.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This science fair project idea determines if the color of light affects the growth of plants.

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?