This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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

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

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Using a toy race car kids create a visual model of the Doppler Effect.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.