Wedges


Wedges were some of the first tools humans ever created! Today, these simple machines are found all around, from doorstops to our own front teeth. Diagrams and simple text explain how wedges work, while experiments allow readers test the machines for themselves. Move through the history of wedges, from hand axes to handsaws, in this fascinating title for beginning readers.

ISBN Number
9781626179950
Trim Size
6 1/2" x 9"
Binding Type
Reinforced Library
Number of Pages
24
List Price
$26.65
20% Discount Price
$21.32
Author
Joanne Mattern
Publisher
Bellwether Media
Copyright Date
2020
Dewey Number
621.8
Reading Level
1