The History of Erasers

What is a student's best friend according to the passage?

• An eraser

• A ruler

What are white erasers made of?

• Synthetic rubber

• Flexible vinyl

What material are pink erasers made from?

• Flexible vinyl

• Synthetic rubber

Who observed South American native Indians using tree resin?

• A French explorer

• An American scientist

What did the South American native Indians use the tree resin for?

• Making erasers

• Making bouncing balls

Which of the following is NOT mentioned as an ingredient in making a pink eraser?

• Fillers

• Curing agents

• Wood

• Oils

What is the purpose of an eraser?

• To rub out errors

• To draw pictures

What does the term "rubber" refer to in the context of erasers?

• A material that can erase pencil marks

• A type of paper

What did Europeans discover about the tree resin brought by the French explorer?

• It could rub out pencil marks

• It could be used as food

What is a common characteristic of materials used in erasers?

• They are rigid

• They are flexible