When was the first hot air balloon flight?
 How do aeroplanes fly?
 Who built a bat-winged aeroplane?
 
ISBN-13: 9780431118437
Availability:  
 Temporarily out of stock
Published: February 2011 
Reading Level: Upper Primary, Lower Secondary
Pages: 32 
Format: Hardback
Publisher: Raintree
Product Category: Science / Science: Transport / Science: Trans - Air Transport