Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

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.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

This Earth Day, create an adorable litter bug while learning about the importance of recycling.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Celebrate Earth Day with a decorative tree made out of strictly reused and recycled materials.

Get kids to celebrate Earth Day by designing their very own junk truck.

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.