The objective of this science fair project is to analyze the effects of salinity and temperature on water.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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

Transform your uncomfortable wooden shoes into charming mini planters!

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

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

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

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

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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 project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Learn about nature by making your own mini moss garden.

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.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.