Colloids Quiz

What is a colloid?

• A type of gas

• A mixture where small particles are evenly distributed

• A solid substance

• A mixture of large particles

How do colloid particles behave in a mixture?

• They settle at the bottom

• They evaporate

• They stay suspended or floating

• They dissolve completely

Which of the following is an example of a liquid colloid?

• Sand

• Smoke

• Sugar water

• Milk

What happens to the particles in a colloid over time?

• They disappear

• They become larger

• They settle down

• They remain suspended

What is an example of a gaseous colloid?

• Oil

• Milk

• Water

• Smoke

What is mayonnaise an example of?

• A solid

• A gas

• A stable colloid

• A solution

What keeps the butterfat globules suspended in milk?

• The color of the milk

• The temperature

• The size of the particles

• Gravity

What is the main characteristic of a colloid?

• Particles are all the same size

• Particles are visible

• Particles settle quickly

• Particles are evenly distributed

Which of the following is NOT a characteristic of colloids?

• They do not settle over time

• They are always clear

• They can be solid, liquid, or gas

• They have small particles

What is an example of a colloid mixture of water and soil?

• Perfume

• Mud

• Smoke

• Milk