So many chores, so little time! If Sid doesn't fill his chore chart with stickers, he'll never get that new Turbo-Mega-Rocket Ship toy. What's so important about a chart anyway? Sid soon learns that charts are great science tools for comparing and contrasting things like snacks, pets, and even chores! When playing with a rolie polie bug, Sid discovers another amazing science tool, the magnifying glass.