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

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

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.

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

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.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

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

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.

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.

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.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

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

In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.

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

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

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!

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Here's an arts and crafts activity for preschoolers and pre-kindergarteners: build brick buildings with homemade mud bricks made from dirt and water.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

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.