This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Examine the effect of pressure on carbonation in soda.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Help your child learn about animal classification with this fun and delicious activity.

Try this chemistry experiment with your curious kid and get some "shocking" results!

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.