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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.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Analyze this simple betting game with your fourth grade student in order to discuss probability.

Your child can brush up on her math skills by charting the length of time that each candle on the menorah takes to burn.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Determine which metal has the highest rate of conductivity.

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

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

This project concerns activity happening millions of miles away, on the sun.

Challenge your third-grader to sharpen her new math skills--and maybe do the planet a favor, too.

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

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.

Want to ensure that your child's math knowledge stays sharp? This mean, median, and mode game is the perfect way to reinforce these essential math concepts.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.

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.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

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

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Can cells be frozen? This science fair project provides information to answer this question.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.