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!

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

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

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.

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

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!

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!

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.

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.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Test whether plants can grow without sunlight and water.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

Test your friends to find out if you can replicate the placebo effect's incredible results.

Find out which kind of bubble wrap fares best when put in impact.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.