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

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.

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.

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!

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.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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.

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 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!

Test whether plants can grow without sunlight and water.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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.

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

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

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