ISBN-13: 9780763645120 / Angielski / Miękka / 2009 / 32 str.
Start with Science books introduce kids to core science concepts through engaging stories, fresh illustrations, and supplemental activities.
One day Oscar sees a ball in the grass. "Try pushing it " says Cricket. Oscar learns that the ball rolls slowly in grass and faster on a path, until it bounces off a tree and changes direction. Some things need a push to move, and others use their muscles to move themselves and to move plenty of other things, too."