Mixtures and Solutions

When a solid solute dissolves when combined with a solvent, ______________.

• the solid does not vanish

• the solid does not change into a liquid

• the solid separates into parts too small to see

Tags

NGSS.MS-PS1-2

Not all mixtures can become a ________________.

• solute

• solvent

• solution

When salt water is heated leaving behind solid salt, this is separating a mixture by what method?

• chromatography

• evaporation

• filtration

• sifting

When salt and water are mixed, they form a solution like in the ocean. When sand and water are mixed, they form a mixture where the sand does not dissolve. Which statement might summarize this observation?

• Mixtures and solutions are the same.

• All substances mixed with water are solutions.

• In mixtures, you cannot see the separate substances.

• In solutions you cannot see the separate substances.

Josh is designing a lab to separate a mixture of gravel, rocks, and sand. He looks at all the ways to separate a mixture but decides that one way would work the best on this mixture. What method should Josh use?

• density

• filtration

• evaporation

• magnetic attraction

Tags

NGSS.MS-ETS1-1

A ____________ is two or more types of matter that are mixed together but keep their own properties.

• solute

• solvent

• solution

• mixture

_________________ separates a solid from a solution.

• texture

• color

• filtration

• density

Iron filings were mixed together with salt crystals. What unique property of iron would be BEST to separate the filings from the salt?

• color

• texture

• magnetism

• melting point

_______________ is a mixture with different types of matter that are mixed evenly throughout.

• solute

• solvent

• solution

_______________ is a property of matter that determines how one type of matter dissolves in another type of matter.

• solute

• solvent

• solution

• solubility