The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

Quench your thirst with great tasting lemonade while you explore the concepts of acid and base, and how these differ from sweet and sour.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

This science fair project idea explores discover whether mixing solutions of equal distances from neutral pH (7) will create a solution close to pH 7.

Explore the effect of wind speed on the burning rate of a candle.

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.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

This experiment explores how listening in to a one-sided conversation affects concentration.

In this middle school activity, your child will learn how to press plants and create her very own herbarium, or plant library! Here's how:

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.