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Book 20 science quiz: free printable worksheet

A free 12-question number quiz for kids, parents and teachers, based on A Million Whys Book 20, The Mountain 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: 1.2   10   12   21   80   1909   7,000   13,000   14,692   15,000   18,000   29,000

  1. Mount Everest in Asia is the tallest in the world at about _______ feet.
    From: Which Is the Tallest Mountain on Each Continent?
  2. The Rockies are younger, mostly lifted up within the last _______ million years, with steep sides and sharp peaks that glaciers also carved.
    From: Why Are the Rocky Mountains Jagged but the Appalachians Rounded?
  3. Mount Logan’s base stretches more than _______ miles across.
    From: What Is the Tallest Mountain in Canada?
  4. The Matterhorn is _______ feet tall.
    From: How Did the Matterhorn Get Its Pointed Shape?
  5. In the Canadian Rockies near Banff, the treeline is around _______ feet.
    From: What Is the Treeline?
  6. A rule of thumb: the distance in miles is about _______ times the square root of your height in feet.
    From: Why Can You See So Far From a Mountaintop?
  7. Near the equator, trees can grow above _______ feet, while in the Arctic they stop near sea level.
    From: Why Is the Treeline Higher Near the Equator than in Canada?
  8. An Andean condor’s wings stretch about _______ feet across.
    From: How Do Big Birds Soar Over Mountains Without Flapping?
  9. Bumblebees have been seen flying at over _______ feet in the Himalayas.
    From: How Do Bumblebees Stay Warm High in the Mountains?
  10. The air at the top of Everest has the same _______ percent oxygen as the air at sea level.
    From: How Much Air Is There at the Top of Mount Everest?
  11. In the tropics, the snow line is more than _______ feet up.
    From: Where Is the Line Above Which Snow Never Melts Away?
  12. The Burgess Shale was discovered in _______.
    From: Why Are Some of the Oldest Weird Animal Fossils Found High in the Rocky Mountains?
Show the answer key
  1. 29,000 (Mount Everest in Asia is the tallest in the world at about 29,000 feet. Book 20, Question 3)
  2. 80 (The Rockies are younger, mostly lifted up within the last 80 million years, with steep sides and sharp peaks that glaciers also carved. Book 20, Question 7)
  3. 12 (Mount Logan’s base stretches more than 12 miles across. Book 20, Question 9)
  4. 14,692 (The Matterhorn is 14,692 feet tall. Book 20, Question 15)
  5. 7,000 (In the Canadian Rockies near Banff, the treeline is around 7,000 feet. Book 20, Question 28)
  6. 1.2 (A rule of thumb: the distance in miles is about 1.2 times the square root of your height in feet. Book 20, Question 45)
  7. 13,000 (Near the equator, trees can grow above 13,000 feet, while in the Arctic they stop near sea level. Book 20, Question 47)
  8. 10 (An Andean condor’s wings stretch about 10 feet across. Book 20, Question 57)
  9. 18,000 (Bumblebees have been seen flying at over 18,000 feet in the Himalayas. Book 20, Question 63)
  10. 21 (The air at the top of Everest has the same 21 percent oxygen as the air at sea level. Book 20, Question 77)
  11. 15,000 (In the tropics, the snow line is more than 15,000 feet up. Book 20, Question 119)
  12. 1909 (The Burgess Shale was discovered in 1909. Book 20, Question 124)

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