Pure Substances and Mixtures Quiz

Which of the following is a pure substance?

• Salt water

• Oxygen gas

• Salad

• Soil

What is the main difference between a homogeneous mixture and a heterogeneous mixture?

• Homogeneous mixtures have visible parts; heterogeneous mixtures do not.

• Homogeneous mixtures are the same throughout; heterogeneous mixtures are not.

• Heterogeneous mixtures are always liquids; homogeneous mixtures are always solids.

• Homogeneous mixtures cannot be separated; heterogeneous mixtures can.

Which of the following is an example of a homogeneous mixture?

• Trail mix

• Air

• Granite

• Vegetable soup

Which term describes a material made of only one kind of atom or molecule?

• Mixture

• Pure substance

• Solution

• Suspension

Which of the following is a heterogeneous mixture?

• Salt water

• Sugar

• Salad

• Oxygen

Which of the following is NOT a pure substance?

• Gold

• Water

• Air

• Oxygen

What is a smoothie?

• A pure substance made of one type of atom

• A homogeneous mixture of two or more substances

• A mixture with visible parts

• A solid substance

Which of the following best describes a pure substance?

• It can be separated by physical means.

• It has a fixed composition and definite properties.

• It is always a liquid.

• It contains two or more substances.

Tags

NGSS.MS-PS1-4

Which of the following is true about mixtures?

• The color is the same in a mixture.

• A mixture has two are more different parts.

• A mixture is the same throughout.

• All mixtures are blended together and uniform.

Which of the following is a mixture?

• Silver

• Table salt

• Lemonade

• Carbon dioxide