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

This Pysanky egg-decorating activity is perfect for young artists. Bring a little color and creativity to any holiday with this traditional Ukrainian craft.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

Instead of loading up on mayonnaise based potato salad, your child can whip up something healthier: German potato salad!

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.

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.

This project compares different liquids and the freezing, melting and boiling points of liquids.

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.

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

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

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

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Try a 100th Day of School Scavenger Hunt with your preschooler, and send her on the search for objects of different colors!

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

Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

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.

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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 uses distillation to convert salt water into fresh water.

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.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

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