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.

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

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

You don't need to head to the Arctic to experiment with life in an igloo. Learners can build their own ice igloo at home from water and empty milk containers.

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

The purpose of this science fair project is to build a basic radio.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

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

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

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

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

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

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

This will encourage your child to utilize their observation skills, develop aesthetic awareness, build artistic drawing abilities and learn about the seasons.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.