Which of these statements about mixtures are true?

Check all that are true.

• All mixtures are two or more substances that are combined to form a new substance.

• A mixture cannot be separated into its original parts.

• A mixture can be separated into its original parts.

• All mixtures are two or more substances that are combined without changing their properties.

Which of these pictures show mixtures?

Check all that are true.

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Tags

NGSS.5-PS1-3

NGSS.5-PS1-4

You have a bucket that contains metal shavings, wood chips, and fruit punch. How would you separate the metal, wood, water, and sugar in the mixture?

Step A: Pour the mixture through a screen to separate the wood chips and metal shavings from the fruit punch.

Step B: Use a magnet to separate the metal shavings from the wood.

Step C: Use a flame to separate the metal shavings from the wood by melting the metal.

Step D: Allow the fruit punch to sit in the sun so that the water evaporates and leaves behind the powder.

• A > C > D

• A > B > C > D

• C > A > D

• A > B > D

Tags

NGSS.MS-PS1-2

Which of these statements about solutions are true?

Check all that are true.

• A solution always contains water.

• A solution is a type of mixture.

• A solution can be made of solids, liquids, or gases.

• A solution contains two or more substances.

Which statements are correct?

Check all that are true.

• Solutions cannot always be separated into their different parts.

• Mixtures cannot always be separated into their different parts.

• Solutions can always be separated into their different parts.

• Mixtures can always be separated into their different parts.

In a solution, the solute dissolves __________ in the solvent.

• slightly

• evenly

• unevenly

• none of the above—it does not dissolve

In a solution, the __________ dissolves into the __________.

• solute ; solvent

• solvent ; solute

• solute ; solubility

• solubility ; solvent

What is the solute and what is the solvent in liquid soap?

Check all that are true.

• solute: soap

• solute: water

• solvent: soap

• solvent: water

Which of the following has the lowest solubility?

• carbon dioxide in water

• sand in water

• sugar in water

• There is not enough information to answer the question.