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.

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.

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

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

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.

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

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

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.

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.

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.

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

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

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

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

This science fair project idea lets you build your own wind tunnel and tests different models of paper airplane.

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

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.