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Test out various brands of permanent markers to see which one is least water soluble.

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

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!

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

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

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

In this science fair project, students make their own rain gauge to measure rainfall.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

This experiment will explore whether adding different substances to a gel affects its strength.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

In this experiment you will use plastic and magnets to test your local soil composition.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.