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.

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.

This experiment will explore the best way to create a perfect soft-boiled egg.

Science fair project that uses distillation to convert salt water into fresh water.

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.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

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

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

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Your child can create his own texture tree, experimenting with design during the process. The result will be a beautiful addition to your holiday decorations

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Explore the wattage of microwaves in relevance to cooking time.

Transform your kitchen table into a winter wonderland with a cookie and cocoa party that looks freshly dusted with snow.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

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

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

These cute holly-shaped hair clips are a breeze to make for holiday celebrations. They make a great party activity, too!

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Thousands of witches that come out to celebrate Halloween. Now, your child can make her very own self-standing witch.

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

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