Mighty Machines in Action
3 total works
Trash cans and dumpsters are the weights garbage trucks lift with their robotic arms. Once lifted, the bins lose their weight, being flipped upside down and emptied into the trucks hoppers. In this low-level title, children will pick up a basic knowledge of garbage trucks.
How can aircraft carriers support heavy jets and helicopters without sinking? Why do cruise ships the size of cities stay afloat, but submarines often disappear underwater? This title answers the questions bobbing in young readers minds as they learn about a fleet of diverse ships.
