Free printables
Book 23 science quiz: free printable worksheet
A free 12-question number quiz for kids, parents and teachers, based on A Million Whys Book 23, The Flight Expedition. Every fact comes straight from a page in the book. Fill in each missing number from the number bank. The answer key links to the video for each question.
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Name: ______________________ Date: ______________ Score: ____ / 12
Fill in the missing number
Number bank: 2 11 60 100 200 226 230 385 500 787 1783 1937
- A big jet may use nearly _______ miles of runway on a hot, heavy day.
From: Why Do Planes Need to Go Fast Before They Can Take Off? - The largest flying bird alive by wingspan is the wandering albatross, with wings up to _______ feet across.
From: Why Do Big, Heavy Flyers Need Big Wings? - Outside a jet at cruising height, the air temperature is around minus _______ degrees Fahrenheit.
From: Why Do Jets Cruise So High Up Where the Air Is Thin? - A honeybee beats its wings about _______ times a second, and a mosquito even more.
From: How Can an Insect Beat Its Wings Hundreds of Times Each Second? - A bumblebee flaps its wings about _______ times a second.
From: How Do Bumblebees Fly When People Once Said They Could Not? - Leonardo da Vinci sketched flapping machines called ornithopters more than _______ years ago.
From: Why Can't People Fly by Flapping Wings Tied to Their Arms? - Almost half of a Boeing _______ is made of composite materials.
From: What Is an Airplane Made Of? - In _______, two French brothers, Joseph and Étienne Montgolfier, built a big paper-and-cloth hot air balloon.
From: When Did People First Fly in a Balloon? - After a famous airship fire in _______, builders switched to helium.
From: Why Do Airships Use Helium Instead of Hydrogen? - A flight from Toronto to London gets a tailwind that can add over _______ miles per hour to its speed, so it takes less time.
From: Why Does a Flight From Toronto to London Take Less Time than the Trip Back? - A giant plane called Roc, built to launch rockets, has the longest wingspan ever, about _______ feet, longer than a football field with its end zones.
From: What Are Some of the Biggest Airplanes Ever Built? - The world record for the farthest paper plane flight is over _______ feet, which shows how much design matters.
From: Which Paper Plane Designs Fly the Farthest, and Why?
Show the answer key
- 2 (A big jet may use nearly 2 miles of runway on a hot, heavy day. Book 23, Question 9)
- 11 (The largest flying bird alive by wingspan is the wandering albatross, with wings up to 11 feet across. Book 23, Question 19)
- 60 (Outside a jet at cruising height, the air temperature is around minus 60 degrees Fahrenheit. Book 23, Question 21)
- 230 (A honeybee beats its wings about 230 times a second, and a mosquito even more. Book 23, Question 35)
- 200 (A bumblebee flaps its wings about 200 times a second. Book 23, Question 37)
- 500 (Leonardo da Vinci sketched flapping machines called ornithopters more than 500 years ago. Book 23, Question 49)
- 787 (Almost half of a Boeing 787 is made of composite materials. Book 23, Question 68)
- 1783 (In 1783, two French brothers, Joseph and Étienne Montgolfier, built a big paper-and-cloth hot air balloon. Book 23, Question 80)
- 1937 (After a famous airship fire in 1937, builders switched to helium. Book 23, Question 82)
- 100 (A flight from Toronto to London gets a tailwind that can add over 100 miles per hour to its speed, so it takes less time. Book 23, Question 117)
- 385 (A giant plane called Roc, built to launch rockets, has the longest wingspan ever, about 385 feet, longer than a football field with its end zones. Book 23, Question 123)
- 226 (The world record for the farthest paper plane flight is over 226 feet, which shows how much design matters. Book 23, Question 126)