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.

Do you think heat can affect a plant's growth rate?

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

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

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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.

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

In this science project, the center of gravity is explored.

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea explores whether talking to a plant will help it grow.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

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.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.