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D. J. Ward has written 4 work(s)
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Cover for 9780606376433 Cover for 9780606235686 Cover for 9781580138123 Cover for 9780822575887 Cover for 9780822566731 Cover for 9780822559368
Simple Machines
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Product Description: FOR USE IN SCHOOLS AND LIBRARIES ONLY. This illustrated introduction of the six simple machines includes coverage of the lever, wheel and axle, pulley, ramp, wedge, and screw.
By D. J. Ward
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Prebinding:

9780606376433 | Turtleback Books, October 6, 2015, cover price $17.20 | About this edition: FOR USE IN SCHOOLS AND LIBRARIES ONLY.

What Happens to Our Trash?
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Product Description: FOR USE IN SCHOOLS AND LIBRARIES ONLY. Each person in the US makes almost 5 pounds of trash every day. What happens to it? How can we stop throwing so much stuff away? Read and find out!
By D. J. Ward
See complete details on each edition (1 edition listed)

Prebinding:

9780606235686 | Turtleback Books, January 24, 2012, cover price $16.00 | About this edition: FOR USE IN SCHOOLS AND LIBRARIES ONLY.

Materials Science
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Product Description: What do a bulletproof vest and a plastic milk jug have in common? Or a diamond ring and pencil lead? They're actually made from similar materials. It all has to do with materials science. Scientists study the microscopic parts of materials such as plastic, glass, or stainless steel...read more
By D. J. Ward
See complete details on each edition (2 editions listed)

Paperback:

9781580138123 | Lerner Pub Group, September 1, 2008, cover price $8.95 | About this edition: What do a bulletproof vest and a plastic milk jug have in common?

Library:

9780822575887 | Lerner Pub Group, September 1, 2008, cover price $27.93 | About this edition: What do a bulletproof vest and a plastic milk jug have in common?

Exploring Mars
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Product Description: Highly accessible writing combines with a magazine-style format in this series focusing on cutting-edge science. Each subject illustrates how scientists solve problems and develop new technology while firmly connecting each title to core curricular subjects...read more
By D. J. Ward
See complete details on each edition (2 editions listed)

Paperback:

9780822566731 | Lerner Pub Group, January 1, 2007, cover price $8.95 | About this edition: Highly accessible writing combines with a magazine-style format in this series focusing on cutting-edge science.

Library:

9780822559368 | Lerner Pub Group, August 3, 2006, cover price $27.93 | About this edition: Describes Mars, the fourth planet closest to the sun in our solar system, and discusses how astronomers are studying it and why, and compares it to Earth.

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