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

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

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

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

This experiment investigates if small changes in your diet can alter your basal body temperature.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

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.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

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.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

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

Enjoy this kid-friendly recipe for Irish soda bread, just in time for St. Patrick's Day!

Invite your kindergartener to explore the bright new world of measurement by starting out with nonstandard (and tasty!) units, such as gummy bears or worms.

Introduce your child to science with something they see everyday--their shadow!

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

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!