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On Earth by Judith Greenberg
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This is volume 10 in a series about a boy and his cousin going on an adventure to save his uncle. He also has a robot best friend and they all take the talking time machine to help them. The uncle was kidnapped by an evil doctor and taken to an Ice Age. They travel in time to a couple different places and learn about Earth in that day. They come across many obsticles but work through them.
  jesaltman | Sep 21, 2011 |
pre-historic times, time travel, space, Earth's core
  marybe789 | Feb 8, 2011 |
The characters in this book, Andrew, Judy, and Thudd are stranded on Earth in their time-a-tron, which is pushed back to 450,000,000 years ago. While dodging fire and crossing many other complications along the way, their main mission is to get to Uncle Al who is stuck in the Ice Age, before he becomes a sabertooth tiger's dinner!


This website has information about all of the Andrew Lost series books. ( )
  smmote | Mar 9, 2010 |
This was another great series book. I thought it had a good story line and seemed to be a quick and easy read. I will try and get the collection of this series too so that my kids can read this in their spare time. www.andrewlost.com This website was a great a tool that talks all about the author, and all of the book involved in the series.
  erowan | Mar 4, 2010 |
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Amazon.com Product Description (ISBN 0375829504, Paperback)

Andrew, Judy, and Thudd have escaped the Big Bang only to find themselves trapped inside the Earth as it forms all around them! Meanwhile Uncle Al is stranded in the Ice Age. Somehow Andrew, Judy, and Thudd must fix their time machine and rescue Uncle Al—before he becomes dinner for a sabertooth tiger! Kids, parents, and teachers love this series—kids for all its gooey grossness, and teachers and parents for all the fun science and great discussion points!

“Andrew Lost books are gross and disgusting. That’s why we like them.”—The Washington Post

“One cliff-hanger after another.”—School Library Journal

“At the end of each book are additional pages of interesting facts . . . even when the stories end, the learning never stops.”—Kidsreads.com

(retrieved from Amazon Thu, 12 Mar 2015 18:22:18 -0400)

(see all 2 descriptions)

While bouncing through Earth's prehistory in a malfunctioning time machine, Andrew, his cousin Judy, and Thudd the robot meet Dr. Kron-Tox's nephew, Beeper, and nearly lose the Time-a-Tron in a tsunami.

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