Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

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

This experiment will explore the possibility of creating an infinite object by hand.

Show your preschooler how to create a simple windsock using a colorful piece of tissue paper, a pipe cleaner, and yarn.

This science fair project idea explores substances that cause a bubble to last longer.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

Help your child make an attractive frozen holiday ornament to hang outside during winter months.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This project examines the phenomenon of using a mirror to trick a person's brain into experiencing sensations in body parts not actually affected.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Can you win a staring contest? Would your performance be influenced by your eyesight? Find out in this science fair project idea!

Science fair project that demonstrates how stalagmites and stalactites are formed.

Determine whether the relationship between a personâs armspan and height are genetic.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.