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Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

This little chick is so cute that your child will want to make a whole flock to call her own.

Shamrock Stamps are a great way to celebrate St. Patrick's Day. Simple and symmetrical, this symbol of Irish culture is the perfect shape for prints.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Learn how to make a paper snowflake with these simple instructions. Help your child learn how to make a paper snowflake with only paper and scissors.

Test whether cutting up meats will make it cook faster than just cooking it whole.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Here's a thought-provoking activity to make new vocabulary words "stick" in the mind of your young learner.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Have your child construct his own Christmas tree from construction paper while cutting, overlapping and measuring to create an adorable modern design.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

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.

Science fair project that uses distillation to convert salt water into fresh water.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

In this science fair project, students examine how temperature affects sugar transport within a plant.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

These delicious Easter Basket Cupcakes are a simple, creative holiday treat. These cupcakes sit in waffle bowls with festive coconut grass and jellybean eggs.

These handmade Christmas treat cups are perfect for house parties, school celebrations, and holiday bake sales.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.