In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

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

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

The objective of this science project is to investigate patterns in fingerprints among family members.

The project researches how lubricants affect the mechanical advantage of a pulley.