This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

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

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.

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

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

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

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

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

Help your preschooler grasp the concept of ordering and sequence while teaching him valuable vocabulary with simple activities around the house.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

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

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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

During the Passover Seder, many Jewish families pour a cup of red wine for Elijah. This year, help your child create his own welcoming glass for Elijah.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

This science fair project idea determines if a particular chemical has an effect (increase or decrease) on the heart rate of Daphnia.

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

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

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

Determine whether the application of Febreeze will lower the bacterial count.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.