Karina Williams Lincoln High School senior, Kelly Richardson explains about centrifugal force as she rolls on cotton candy for Lincoln Crossings third-grader, Sam Bains, right, and Carlin C. Coppin second-grader Isaiah Griffin.
Karina Williams Lincoln High School sophomore, Evan Rendes, explains how a roller coaster works to Creekside Oaks third-graders, Zachary Eutsey, left, and Dawson Nichols.
Karina Williams Carlin C. Coppin third-grader, Richard Guzman said jumping on the water mixed with corn starch felt ?soft?. The exhibit was similar to quicksand, if a person applies pressure they stay on top, if they are still applying little pressure they will sink to the bottom.
Karina Williams Lincoln High School sophomores, Cassy Jones and Carlos Delafuente shoot off water rockets during the school's Science Expo.
Karina Williams Lincoln High School sophomore, Carlos Delafuente shoots off water rockets during the school's Science Expo.
Karina Williams Lincoln High School sophomores, Jordan Medina, right, and Daniel Milligan, left, explain their pressure exhibit to Lincoln Crossing third-graders, Chris Rodriquez, left, and Jay Townsend, front right.
Karina Williams Lincoln High School sophomores Devona Do, right, lights Caitlin Zumalt's hands on fire as Abir Hegazi, middle, talks to the children.
Karina Williams Lincoln High School junior, Chantelle Chubon explains density with her liquid display to, from left, Cody Burgans, second-grader at Carlin C. Coppin, Griffin children of Rocklin, Daniel, 6, Rosalie, 7, and Joseph, 5. Christine Griffin said the Science Expo was so wonderful she took her children out of school.
Karina Williams Lincoln Crossing third-grader Sarah Lopez, left, is excited after testing her copper rod on a flame to see the flam turn blue. Tucker Niles, left and Isaac Ackerman, second-graders from Carlin C. Coppin and Sydney Abshear, third-grader at Lincoln Crossings test thier copper rods too.