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.

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

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.

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.

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

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.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

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!

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

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.

Discover whether a metal will expand under hot water.

In this project, waves of vibrations are experimented with using water in glasses.

This science project idea examines the effect of microwaving on various objects.

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

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project idea produces varying pitches of sound.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.