This science fair project idea determines the most effective method of preserving food.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This science fair project teaches students the differences between fruits and vegetables.

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 explores whether talking to a plant will help it grow.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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 experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Find out whether a longer airplane will fly farther or a wider paper airplane.

Use pepper and soap to discover some fun facts about the properties of water.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Construct and experiment with a periscope using reflected light rays to gather an image.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.