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

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

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

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

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

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

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!

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.

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.

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

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

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!

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

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!

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

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!

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

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

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

Explore the wattage of microwaves in relevance to cooking time.

Examine the connection between temperature and chemiluminescence.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Check out is fun science fair project idea to learn about heat transfer and why certain insulating materials are more practical than others.

This project explores whether music affects the growth and health of plants.