It takes the average reader 1 hour and 17 minutes to read DK Eyewitness Books: Invention by Lionel Bender
Assuming a reading speed of 250 words per minute. Learn more
Relaunched with 8 pages of expanded text! A unique and fascinating introduction to the amazing variety of inventions, both ancient and modern: from simple machines such as wheels, gears, pulleys, and levers, Eyewitness Invention charts the developments of weights and measures, writing utensils, early watcges, and navigation aids. The microscope and telescope are featured, as well as a model windmill and an internal combustion engine sliced through to show the mechanism inside. Finally, there are the inventions that have revolutionized the modern era from telephones and radios to television...
DK Eyewitness Books: Invention by Lionel Bender is 76 pages long, and a total of 19,456 words.
This makes it 26% the length of the average book. It also has 24% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 1 hour and 46 minutes to read DK Eyewitness Books: Invention aloud.
DK Eyewitness Books: Invention is suitable for students ages 8 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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