Wedges to the Rescue


From cutting apples to zipping a backpack, you need wedges. Read Wedges to the Rescue to learn what wedges are, how they work, and how these simple machines can save the day.
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From cutting apples to zipping a backpack, you need wedges. Read Wedges to the Rescue to learn what wedges are, how they work, and how these simple machines can save the day.
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Editorial Reviews

Children's Literature - Joyce Rice
When your dad needs to keep the door open, he uses a doorstop underneath the door to keep it from closing. When your grandpa needed wood for the fireplace, he would put a wedge in a crack in the wood that would cause the wood to split. When you put your books into your backpack and zip it up, you are using a wedge. The part of the zipper that makes the zipper split apart is a wedge. An axe that a woodcutter uses is made from a handle and a wedge. A nail, a needle, a staple, and a push pin are all examples of wedges because when they are inserted into an object, they force the object to separate. This series, titled "First Facts. Simple Machines to the Rescue," presents simple, brief explanations about how things work. Each title contains a hands-on activity that illustrates the principles discussed in the book or gives additional information. The glossary contains all the words that are in bold print throughout the text. An index and suggestions for further reading are included. This publisher maintains a web site,, that directs children to resources chosen for age appropriateness. Each selection of resources is identified by typing in the book ID. Resources selected are then specific to age and the subject of the title. This management of resources is particularly helpful for this age group. All titles in this series have the same resource management page, and all titles are recommended for elementary classrooms and media collections.
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Product Details

  • ISBN-13: 9780736867504
  • Publisher: Capstone Press
  • Publication date: 1/1/2007
  • Series: Bilingual Picture Dictionaries Series
  • Pages: 32
  • Sales rank: 1,439,080
  • Age range: 6 - 9 Years
  • Lexile: 660L (what's this?)
  • Product dimensions: 8.22 (w) x 8.26 (h) x 0.30 (d)

Table of Contents

A Helpful Wedge     4
Work It     7
A Wedge in Time     9
What Would We Do Without Wedges?     12
Working Together     16
Wedges Everywhere     19
Amazing but True!     20
Hands On: Working with a Wedge     21
Glossary     22
Read More     23
Internet Sites     23
Index     24
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