It takes the average reader 2 hours and 55 minutes to read Backyard Ballistics by William Gurstelle
Assuming a reading speed of 250 words per minute. Learn more
Uses diagrams, photographs, and text to provide step-by-step instructions for making thirteen ballistic devices, including a match-powered rocket, a potato cannon, and a Cincinnati fire kite.
Backyard Ballistics by William Gurstelle is 169 pages long, and a total of 43,771 words.
This makes it 57% the length of the average book. It also has 53% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 3 hours and 59 minutes to read Backyard Ballistics aloud.
Backyard Ballistics 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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