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

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

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.

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!

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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.

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.

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

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.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

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

Test whether plants can grow without sunlight and water.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

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

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

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

Discover whether a metal will expand under hot water.

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.

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.