Ross Beier

Ross Beier, a chemist with U.S. Department of Agriculture in College Station, brings his children to the show every year.On Saturday, he showed his 11-year-old son Jordan how different household liquids can be used to polish pennies

"All of my kids have done things in science," he said."One is in mechanical engineering and the other is training to be a chef, which is all based on science."

The show was pitched at students from kindergarten through 12th grade, with each exhibit featuring simple experiments anyone could understand.

Ross Beier, a chemist with U.S. Department of Agriculture in College Station, brings his children to the show every year.On Saturday, he showed his 11-year-old son Jordan how different household liquids can be used to polish pennies

"All of my kids have done things in science," he said.