Cambridge University Press Cambridge Factbooks 6 Why Does It Fly?
Publikace: A series of twenty non-fiction science readers which engages children in the world around them. What makes flight possible? Why can a bumblebee fly? How does a jet engine work? You can find the answers to these and other questions about flight and gr - Rob Moore. Anotace: Zjednodušená četba pro děti ...a dál?