This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

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 examines whether plants are still able to grow normally if they are turned upside-down.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

In this project children practice the scientific method while playing with puffy paint.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Discover how and which salt melts ice the quickest.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Discover whether a metal will expand under hot water.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.