This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

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

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

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.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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?

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

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 fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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.

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

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.