This year, the science fair was won by Alex Muros. His project explained why leaves change colors in the fall. Alex was given a prize by the principal. He will also get to present his project at the statewide science fair in the spring. Alex will be taken out for ice cream by his parents to celebrate his hard work.

Re-write the paragraph so that all of the sentences are in the active voice.

This year, Alex Muros won the science fair by explaining why leaves change colors in the fall. The principal gave Alex a prize for his project. Alex will also have the opportunity to present his project at the statewide science fair in the spring. Alex's parents will take him out for ice cream to celebrate his hard work.