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

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.

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

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Encourage your child to compare and contrast a wide variety of autumn-themed items by weighing various objects and recording their findings.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

Combine art, history and food with this unique project! Your child will make her own butters, and learn a little about Colonial history at the same time

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

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

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

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

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

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

Examine the connection between temperature and chemiluminescence.

Explore the wattage of microwaves in relevance to cooking time.

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

Preschoolers are fascinated by how colors can be mixed to form new ones. This activity combines color mixing with the concept of melting for extra science fun.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.