Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

This science fair project idea determines which method of hand cleansing is the most effective.

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project teaches students about wilting and browning of salad greens.