Amarrya Edwards and Jared Lara use a pulley system as they race during a Science Matters activity on the Oklahoma Museum Network science bus at Coolidge Elementary School Tuesday, Jan. 14, 2014. Students in grades 3-5 will participate in the 2-day events. (Staff Photo by BONNIE VCULEK)

Amarrya EdwardsJared LaraPulley RacesScience MattersOklahoma Museum NetworkCoolidge Elementary SchoolBonnie VculekEnid