It takes the average reader 2 hours and 40 minutes to read The Blackbirch Encyclopedia of Science and Invention: A-D by Jenny E. Tesar
Assuming a reading speed of 250 words per minute. Learn more
Takes a look at inventions and developments that changed the course of human history, from acid rain to DNA.
The Blackbirch Encyclopedia of Science and Invention: A-D by Jenny E. Tesar is 160 pages long, and a total of 40,000 words.
This makes it 54% the length of the average book. It also has 49% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 3 hours and 38 minutes to read The Blackbirch Encyclopedia of Science and Invention: A-D aloud.
The Blackbirch Encyclopedia of Science and Invention: A-D is suitable for students ages 10 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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