Andrew Carnegie made his fortune in which industry, which helped make skyscrapers possible?

John D. Rockefeller made his fortune in which industry?

As factories grew during the Industrial Revolution, many families moved from farms into what kind of area to find work?

What machine, invented in the late 1800s, helped store owners keep track of sales and stop employees from stealing money?

Labor unions, which grew powerful in the late 1800s, formed to fight for better what?

Canned food, which became common in the 1800s, helped people because it allowed food to do what?

Department stores, which grew popular in the late 1800s, let shoppers buy many different products at how many locations at once?

The stock market crash of 1929 led directly to which major economic event?

The typewriter, invented in the late 1800s, mainly sped up which part of office work?

Newspaper and magazine advertising in the late 1800s helped businesses reach more of which group?