In this design challenge, your child will create a parachute for a small toy using typical household items.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

In this design challenge, your child will make a bottle rocket using typical household items.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

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

In this activity your child will create their very own marble maze!

Learn all about balance and motion as your child designs a corn maze!

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

Have your child kick off their summer vacation by making a miniature water slide!

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

Challenge your learner to design and build a city of their own in this creative engineering activity.

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Find out which kind of bubble wrap fares best when put in impact.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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

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

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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!