Solve the mystery of the unpoppable balloon in this 7th grade science experiment that demonstrates the process of heat transfer.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

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

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

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

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

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

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.

This experiment will explore the best way to create a perfect soft-boiled egg.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

This project examines how temperature affects the volume of gas in balloons.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This simple experiment serves as an introduction to the greenhouse effect.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

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

This science fair project idea determines which flower lasts the longest.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

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

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.