Shannon Welch, a third grader at Mountain Avenue Elementary School, brought in her science project Monday, her father, Richard.
Shannon is a student in Vicky Nolte's third-grade class at the La Crescenta school.
"They have been studying the planets," Nolte said.
It was evident the students knew their solar system when Welch quizzed them on the planets. They knew the names of each and where they were placed in relation to the Sun.
Welch, the deputy project system engineer of the Mars Science Laboratory Project at JPL, shared a video on various Mars projects and what scientists and engineers plan for the future.