This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

In this activity, your child will be challenged to make a tower using paper cups.

Making your own glass cleaner is easy, effective and inexpensive!

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Do different types of oil mix or stack? Find out in this science fair project idea!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

This project examines whether people's taste perception is influenced by what they see.