Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

This science research project challenges students to think of more effective lobster farming methods.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Will the shape of an ice cube impact how fast the ice melts?

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Take a dive into the candy jar with this yummy science experiment.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.