Mixtures and Solutions Quiz

A student is given a sample of liquid that appears uniform throughout. Upon evaporation, the student recovers salt crystals. Which type of mixture was the student investigating?

• Pure substance

• Homogeneous mixture (solution)

• Heterogeneous mixture

• Compound

Tags

NGSS.MS-PS1-2

Which characteristic distinguishes a heterogeneous mixture in a model?

• Particles are of the same size and shape arranged uniformly.

• Particles of different substances are unevenly distributed and easily distinguishable.

• Particles of different substances are evenly distributed and not distinguishable.

• Particles of one substance only, with no other substances present.

Which of the following are heterogeneous mixtures? (Select THREE correct answers)

• Orange juice with pulp

• Purified water

• Muddy pond

• Saltwater

• Multicolored rocks

A student makes a mixture of sand and iron filings. After investigating, the student observes that a magnet attracts the iron filings but doesn’t attract the sand. Which of the following statements accurately describes the mixture and the properties of sand and iron filings? Select TWO correct answers.

• The composition of the mixture of iron filings and sand is uniform throughout.

• The mixture of iron filings and sand is heterogeneous.

• The properties of iron filings stay the same in the mixture.

• The sand dissolves when it is mixed, and its properties are changed.

Tags

NGSS.MS-PS1-2

Complete the following sentence: A ________ consists of only one type of particle and has a fixed composition, such as gold or water.

• heterogeneous mixture

• solution

• compound

• homogeneous mixture

• pure substance

Complete the following sentence: A ________ (or solution) has uniformly distributed components, like salt water.

• pure substance

• heterogeneous mixture

• homogeneous mixture

• compound

Complete the following sentence: A ________ contains components that are not uniformly distributed and can often be seen and separated physically, like sand and iron filings or oil and water.

• heterogeneous mixture

• pure substance

• element

• homogeneous mixture

• compound

Another term for homogeneous mixture is ____________________.

• substance

• aquous

• solution

• non-uniform substance

What type of mixture is formed?

• pure substance

• homogeneous

• heterogeneous

• non-uniform substance

An example of heterogeneous mixture is ____________________.

• sugar

• oxygen

• water

• Trail Mix

• saltwater