Inside the Brick Factory: teacher key

How Plastic Toy Bricks Are Made, grade 2 edition, written for 2nd grade. Follow plastic grains from giant silos to hot molds and cold water, and see how machines print, weigh and check toy bricks.

Read the book. Print this page for the key.

Questions and answers

1. What are the bumps on a brick called?
   • Studs (answer)
   • Tubes
   • Silos
2. What stores the plastic grains?
   • Molds
   • Silos (answer)
   • Belts
3. What cools the plastic in the mold?
   • Hot air
   • Sand
   • Cold water (answer)
4. What happens to leftover plastic from the mold?
   • It is ground up and used again (answer)
   • It is buried
   • It is eaten
5. Why do machines weigh each bag?
   • To make them sing
   • To flag ones that are too light or heavy (answer)
   • To paint them