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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Start your toy engines -- this is going to be a fast and friction-filled race!

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

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.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

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.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?