Suspensions, Colloids, and Solutions

The video, hosted by Will NY the Science Guy and Sean, explains the differences between solutions, suspensions, and colloids. Solutions are homogeneous mixtures where light passes through easily. Suspensions contain large particles that can settle or be filtered out, allowing light to pass through. Colloids have small particles that remain suspended, making it difficult for light to pass. Examples include sugar in water for solutions, oil in water for suspensions, and mayonnaise in water for colloids.

What is a key characteristic of a solution?

• It is a mixture where light cannot pass through.

• It is always opaque.

• It contains large particles that settle out.

• It is a homogeneous mixture with no light scattering.

Which of the following is an example of a solution?

• Sugar and water

• Mayonnaise and water

• Oil and water

• Sand and water

What happens to the particles in a suspension over time?

• They dissolve completely.

• They settle out or can be filtered.

• They become invisible.

• They remain evenly distributed.

Which mixture is an example of a suspension?

• Oil and water

• Vinegar and water

• Salt and water

• Milk and water

What is a defining feature of a colloid?

• It has large particles that settle out.

• It is a homogeneous mixture.

• It contains small particles that remain suspended.

• It is always transparent.

Which of the following is an example of a colloid?

• Mayonnaise and water

• Oil and water

• Salt and water

• Sugar and water

What is the main difference between a suspension and a colloid?

• Colloids can be separated by filtration, suspensions cannot.

• Suspensions are always transparent, colloids are not.

• Suspensions have particles that settle out, colloids do not.

• Colloids have larger particles than suspensions.