How Soap Cleans — Questions and answers

Read the full story

According to River's mom, what makes soap work?

Choices

  1. Molecules that love water and molecules that hate water ✓
  2. Scrubbing the stain very hard
  3. Using only warm water
  4. Leaving the clothes in the sunshine

Answer: Molecules that love water and molecules that hate water

From page 2

What was Nicolas Leblanc's main goal?

Choices

  1. To make soap cheaper for everyone ✓
  2. To win a prize from the King for his inventions
  3. To discover new types of salt
  4. To become a famous sailor

Answer: To make soap cheaper for everyone

From page 4

Who did Leblanc quote while thinking about how to make soda ash?

Choices

  1. Leonardo da Vinci ✓
  2. River's mom
  3. Felix
  4. The King

Answer: Leonardo da Vinci

From page 5

How did River describe the way soap molecules work?

Choices

  1. Like a tiny tug-of-war ✓
  2. Like a big splash
  3. Like a quiet whisper
  4. Like a fast race

Answer: Like a tiny tug-of-war

From page 6