WONDER #1546: Why Are Barns Red?

Question 1 of 3

What type of oil derived from the seeds of the flax plant was often used to seal bare wood to prevent rotting?

1. canola oil
2. sunflower oil
3. linseed oil
4. motor oil

Question 2 of 3

Iron oxide is usually known by what more common name?

1. paint
2. red
3. rust
4. oil

Question 3 of 3

Which of the following was NOT an ingredient in a simple recipe for early paint?

1. skimmed milk
2. lime
3. iron oxide
4. gold

Check your answers online at https://www.wonderopolis.org/wonder/why-are-barns-red.