In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.