This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

In this science fair project, students use the streak test to tell minerals apart from each other.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Use muffin tins to create a simple, affordable and fun game to help your child practice their vocabulary!

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

Let your kid try his hand at engineering as he builds and tests two different structures made out of rolled newspaper. Which one is the strongest?

In this science fair project, students evaluate if astrological signs provide clues about people's personalities.

This science fair project idea investigates the hardness property of minerals.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Is your first grader a picky eater who judges her meal at a glance? Change her perception of food with the help of this tricky taste test.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

The SAT likes to replace numbers with letters. Here's a game that will show your teen that cracking the code is a lot easier than it looks.

In this science fair project, students test how objects float and sink in liquids of different densities.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.