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 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.

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...

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.

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

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

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair project idea researches the effects of acid rain on plant growth.