Who Built the First Line?: teacher key

How Cars Are Made, grade 4 edition, written for 4th grade. Ford did not invent the assembly line. See what was new in 1913, and how presses, casting and paint make a car.

Read the book. Print this page for the key.

Questions and answers

1. Who built cars on an assembly line before Ford?
   • Nobody
   • Ransom Olds (answer)
   • Karl Benz
2. What was new about Ford's line in 1913?
   • It used no workers
   • It made trucks
   • It moved the car to the workers (answer)
3. How was Olds's line different from Ford's line?
   • Olds's line was still, and Ford's moved the car (answer)
   • Olds's line was in Michigan only
   • Olds's line used no workers
4. What does the clear coat protect the color from?
   • Loud songs
   • Sunlight and air that can dull it (answer)
   • Rain boots
5. What is a Giga Press?
   • A kind of tire
   • A paint can
   • Tesla's giant casting machine (answer)
6. How long did it take to build a magneto after the line began?
   • Five minutes (answer)
   • 20 minutes
   • Two days

Words

• patent: invention paper
• primer: first coat
• cast: pour metal
• magneto: spark maker