"Describes several models of military aircraft used in World War I and World War II, including specifications and statistics"--Provided by publisher.
The Steam Engine (Great Inventions (World Almanac Library))
by Debra Deford
Inclined Planes (Simple Machines (Smart Apple Media Hardcover))
by John Hudson Tiner
Military Amphibious Vehicles (Military Machines)
by Barbara Alpert
"Simple text and full-color photographs describe various military amphibious vehicles"--
Mon Coffre A Outils
Robots (4 Paperback/1 CD) (National Geographic Kids)
by Melissa Stewart
Using Stem to Investigate Issues in Managing Waste, Grades 5 - 8 (Using STEM to Investigate)
by Ed D Barbara R Sandall and Abha Singh
Cars and Trucks / Autos Y Camiones (Mega Military Machines/Megamaquinas Militares)
by Catherine Ellis
Let's Build A Nothing Machine
by Albert B Squid and Square Root of Squid Publishing
Tractors (Young Machines S.) (Usborne Machine Board Books)
by Caroline Young
How does a combine harvester work? Why are a tractor's wheels so wide? This text contains answers to these questions and many more on how tractors work.
Simple Machines, Grades 5 - 8
by Ph D John B Beaver and Ed D Barbara R Sandall