Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

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:

Help your child make a beautiful homemade sandcastle that will last!

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

People have favorite flavors, but what about ants? Which ant food is the most popular?

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

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.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Make sourdough bread...and learn some colonial history and modern science in the process!

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.