Don't jump!rnrnIf you're on the space shuttle, that is. Astronauts never jump in space. They usually drink out of straws, and they lift tons of equipment as if it were light as air. Find out more in this information-packed voyage into space.
This revised, newly illustrated edition discusses the number of teeth humans have as babies, toddlers, children and adults, describes how permanent teeth replace baby teeth, and includes a quick lesson in proper dental care.rnrnWhen you were a baby, you didn't have any teeth at all. Then as you grew, your teeth started to come in. First one, then two - and finally, twenty teeth in all!But you w…
Explains the construction and purpose of the International Space Station and the life of the astronauts on board