Mixtures and Solutions

What happens to mass when materials are combined?

• When materials are combined into a mixture or solution the mass is conserved.

• When materials are combined into a mixture or solution the mass is increased.

• When materials are combined into a mixture or solution the mass is decreases.

• When materials are combined into a mixture or solution the mass is lost.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

To _______ means to keep from going away.

The mass is the same before and after mixing, so no mass is lost.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Materials _____ go away when combined into mixtures or solutions.

Which of the following best explains how solutions are different from mixtures? (select two)

• Materials in solutions are equally spread throughout the solution.

• Materials in mixtures are not evenly distributed and may float or sink.

• Materials in solutions are not equally spread throughout the solution.

• Materials in mixtures are evenly distributed and may float or sink.

A _______ is a mixture in which one substance is dissolved into another.

You can always see the different substances in the solution.

• True

• False

A materials in ________ are easy to identify and separate.

Which of the following best explains the defintion of a mixture?

• Two or more substances that are combined but do not form a new substance.

• When one substance is dissolved in another.

• When substances change into a different state.

• When a solid and gas are mixed together