Steel Skeletons: teacher key

How Buildings Stand Up, grade 1 edition, written for 1st grade. A tall building has a strong steel frame. Learn about steel, wind, triangles and the tallest building.

Read the book. Print this page for the key.

Questions and answers

1. What do builders use to make a strong frame?
   • Paper
   • Cotton
   • Steel (answer)
2. What is a truss made of?
   • Circles
   • Triangles (answer)
   • Spoons
3. Where does the foundation go?
   • On the roof
   • In the sky
   • Into the ground (answer)
4. Which has 163 floors?
   • The Burj Khalifa (answer)
   • A house
   • A tent
5. Why do the columns get squeezed?
   • The building pushes down (answer)
   • Wind blows up
   • A truss sleeps

Words

• steel: strong metal
• truss: triangle frame
• skyscraper: very tall building