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In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

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

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Make a list of items that need repurposing such as e-waste, batteries and mattresses. Invent your own original repurposed design.

Develop a new system for predicting geographic changes. Demonstrate the nature of geographic change. Make logical predictions.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Thoroughly research image search engines. Consider possible improvements for visual search engines. Help design better image-matching engines.

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

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

Science fair project that builds a magnetometer and demonstrate its uses.

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

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

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

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This project involves the development of a website using free software online to promote the value of science.

Science fair project that illustrates the properties of black holes in space.