This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

Discover whether a metal will expand under hot water.

Here's a pressed leaf card project that puts science and writing together for your second grader.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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

This science fair project idea provides evidence that air is everywhere and takes up space.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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!

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

This project investigates the affect of storage temperature on microwave popcorn.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

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

Learn about nature by making your own mini moss garden.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

Transform your uncomfortable wooden shoes into charming mini planters!