Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

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!

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

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

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

Determine which metal has the highest rate of conductivity.

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

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

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.

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.

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

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 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.

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

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

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

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

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.

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

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.