Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

In this "paper and pen" science fair experiment, students will research the difference between standard time and astronomical mean time.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Science fair project that demonstrates how stalagmites and stalactites are formed.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

This science fair project idea explores how length affects the weight a bridge can hold.

The aim of this science fair project is to study the mathematical construct called magic squares and create a unique magic square puzzle.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Examine the connection between temperature and chemiluminescence.

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

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.