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

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.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this science fair project, students create their own miniature salt flats at home.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this activity your child will create their very own marble maze!

This science fair project idea explores whether talking to a plant will help it grow.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Have your child kick off their summer vacation by making a miniature water slide!

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea produces varying pitches of sound.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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

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

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

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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

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

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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.