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

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

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

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

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

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.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

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.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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.

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.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

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

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

This science fair project idea measures physical dexterity as a function of temperature.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This science fair project idea investigates food preference of birds.

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

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.