Photo Gallery: 8th grade Theodore Roosevelt Middle School students make roller coasters in physical science class

8th grade girls tape and loop a portion of rubber track that will work to accelerate a heavy marble to roll from one end to the other in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

Nicolas Nix, 14, watches a marble crest a slope on the rollercoaster he and his team designed using heavy rubber track in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

Eliza Petrosian, 13, as a marble is rolling by her, looks at the loops and corners of her team’s track that successfully rolled the marble from one end to the other in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

Armen Teroganisian, 13, shapes a length of rubber track to keep a heavy marble, that successfully rolled by him, on the track in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

A team laughs after a marble hits the thumb of one of their teammates near the end of their rollercoaster in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

Teacher John Carroll helps a team figure out how to correct the slope of several feet of rubber track to keep a heavy marble from falling off in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

8th grade girls make a large loop for a heavy marble to roll around in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

One of four tables of students attempt to take a length of rubber, several feet long, and hang it form the ceiling and make hoops and humps to successfully roll a heavy metal marble from the start to the finish in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)

These are the faces of success after a heavy marble rolled from the top a rubber track to the other end through a series of hoops and humps the students designed in the 8th grade science class at Theodore Roosevelt Middle School on Monday, March 13, 2017. The class built the rollercoasters as part of a final project for the physics portion of the school year. They will study astronomy next.  (Tim Berger / Staff Photographer)