This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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.

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.

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.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

In this project students experiment with making music using only glasses of water.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

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

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.

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.

Discover whether a metal will expand under hot water.

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

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 science fair project idea demonstrates that plants give off water.

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

This science fair project idea investigates how color affects temperature.

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

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 which objects float and sink in honey, water, and oil.

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