Grade 7 Exam Review Separating Mixtures | Quizizz 23/02/2024, 3:57 PM

Worksheets Name

Grade 7 Exam Review Separating Mixtures

Class
Total questions: 19
Worksheet time: 40mins
Date
Instructor name: Mary-Ellen Wilcox

1. Sand and gravel may be separated from each other through using..

a) an evaporating basin b) a filter funnel

c) a sieve d) a distillation

2.

Which of the following pairs of substances may best be separated through distillation

a) salt and sand b) sand and soil

c) water and soil d) water and alcohol

3. Which one of the following techniques would best be used to separate soil and water?

a) distillation b) Filtration

c) Chromatography d) Decanting

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4.

Name the separation technique shown in the diagram.

a) distillation b) decanting

c) evaporation d) filtration

5. Two or more substances mingled together, but not chemically combined are known as a

a) distillate b) mixture

c) solution d) residue

6. The separation technique that involves heating a solution until the liquid changes into a gaseous state,
leaving behind a solid is known as

a) evaporation b) loading

c) chromatography d) decanting

7.
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Grade 7 Exam Review Separating Mixtures | Quizizz 23/02/2024, 3:57 PM

7.

In a coffee machine, the ground coffee is separated from the coffee solution by using..

a) sand paper b) toilet paper

c) filter paper d) tissue paper

8. Which one of the following would you use to separate sand from iron filings?

a) a bar magnet b) alum

c) filter paper d) chromatography paper

9.

Water and alcohol are easily separated by distillation because of their

a) different colours b) different densities

c) different melting points d) different boiling points

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10.

Liquids that do not mix may be separated by using..

a) a sedimentation b) a separating funnel

c) a loading d) an evaporating dish

11. Salt and water are

a) an element b) a compound

c) a mixture d) a solute

12. Making a mixture results in ___________________ only.

a) two subtances b) chemical reactions

c) physical changes d) separate parts

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Grade 7 Exam Review Separating Mixtures | Quizizz 23/02/2024, 3:57 PM

13.

To separate iron filings and sulfur what method should you use?

a) magnet b) sorting

c) boiling d) filtration

14.

To separate noodles from water what method should you use?

a) magnet for the noodles b) boiling while it is cooking

c) filtration with a strainer

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Grade 7 Exam Review Separating Mixtures | Quizizz 23/02/2024, 3:57 PM

15.

Students collected data on four substances. If the same students were then given a mystery substance
made of tan crystals that dissolves in water, it could be –

a) sand b) white sand

c) Corn starch d) brown sugar

16. Which of the following is a method of separating solutions?

a) evaporation b) decanting

c) filtering d) hand separation

17.

How would you separate the ingredients of mixture Z?

a) A sieve b) A magnet

c) Water d) My hands

18. How would you separate a mixture of sand and salt?

a) Mix them with water and let the water evaporate b) I would not do any of these because none of
these options would work

c) Mix them with water, pour the mixture through a d) Heat the sand and salt mixture for 5 minutes,
sieve, then let the water evaporate then let it cool

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19. A glass beaker contains 100 milliliters of water into which 5 grams of salt was stirred. Which item should
be used to separate this particular mixture?

a) separation funnel b) triple beam balance

c) paper filter d) hot plate

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