2020-2021 Miller 4th Science CFA # 2

A combination of 2 or more substances that can be easily separated is called-

• A. mixture

• B. solution

• C. carbon dioxide

• D. matter

To separate a mixture of salt and water, what separation method is used?

• A. sieve

• B. magnet

• C. evaporation

• D. screen

Which of the following will not dissolve in water?

• A. Salt

• B. Sugar

• C. Powder mix (Kool Aid)

• D. Sand

What tool would best help you sort paper clips from nails?

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Mr. Smith spilled his favorite snack. Is it a mixture or solution? Why?

• A. It is a mixture, because it is made up of 2 or more substances that can be easily separated.

• B. It is a solution, because it can only be separated by dissolving it in water.

• C. It is a mixture, because it can only be separated with a filter.

• D. It is a solution, because it can not be separated easily.

Which of these mixtures is not a solution?

• A. salad

• B. Sand and water

• C. box of crayons

• D. sugar and water

To break down and spread out evenly in a liquid is-

• A. mixture

• B. filtering

• C. magnetism

• D. dissolve

Tags

NGSS.MS-PS1-2

A material that allows liquids to pass through it, while very small solids remain behind

• A. filter

• B. sieve

• C. funnel

• D. spoon

Which list includes examples of only solutions?

• A. fruit salad, jello, lemonade

• B. tea, lemonade, cookie dough

• C. lemonade, sugar water, salt water

• D. tea, coffee, oil and water

You have the following solids in a lab: salt, sand, lemonade powder and pepper. Which solids will dissolve in water to create a solution?

• A. pepper, sand, and salt

• B. salt and lemonade powder

• C. Salt, lemonade powder and sand

• D. pepper and sand