This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

Construct some glittery ring bling with this ring bracelet craft.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Put together this delicious infused honey with an herb or flavoring of your choice. Then put it in a pretty jar and give it as a gift!

In this experiment we will be determining whether birds prefer certain colors of seed.

Discover whether a metal will expand under hot water.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair project idea investigates how magnetism can defy the force of gravity.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This science fair project idea demonstrates that plants give off water.

Use this interactive activity to help your third-grade child develop vocabulary skills and make a flipbook.

If your child is hungry to work on his sewing skills, put together a plate of this felt play food ravioli.

This science fair project idea investigates how color affects temperature.

Create clever airplane favors for your child's next birthday party in this fun third grade arts and crafts activity.

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

This felt cookies craft is a great way to introduce an older kid to a needle and thread, and will make great toys for younger siblings once theyâre done.

Play tic-tac-toe and help your kid memorize multiplication facts!

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea explores whether white light can be separated into different colors.

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Being a kid is hard work. Soothe stresses and calm fears with this DIY Zen garden -- all you need is sand, stones and a shoebox.