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

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.

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

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!

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

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This science fair project investigates why the number of visible stars changes from place to place.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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

In this project, a magnet is used to collect iron from breakfast cereals.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.