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Worksheets

Mixtures

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

___________ are the smallest unit of an element that maintains the properties of that element.

a)

Atoms

b)

Elements

c)

Compounds

d)

Mixtures

2.

An _______________ is made up of one or more of the same kind of atom chemically combined.

a)

atom

b)

element

c)

molecule

d)

compound

3.

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

a)

compound

b)

element

c)

molecule

d)

mixture

4.

A ______________ mixture is one that does not have a uniform composition.

a)

heterogeneous

b)

homogenous

c)

pure substance

5.

A _________________ mixture is one where the substances are evenly spread throughout.

a)

heterogeneous

b)

homogeneous

c)

pure substance

6.

_______________ are mixtures in which its particles are too big to stay mixed without being stirred or shaken.

a)

Solutions

b)

Colloids

c)

Suspensions

7.

In a ______________, one substance is dissolved in another substance.

a)

solution

b)

suspension

c)

colloid

8.

A type of mixture that falls in between suspensions and solutions are called ______________.

a)

solutions

b)

colloids

c)

suspensions

d)

pure substances

9.

Milk and gelatin are examples of __________________.

a)

suspensions

b)

colloids

c)

solutions

10.
Water can dissolve many things so it is called the .....
a)
wonderful water
b)
cohesion
c)
liquid
d)
universal solvent
11.
Rey is making soup. He will dissolve cubes of instant soup mix in hot water.
How can Rey make the soup cubes dissolve more quickly in the water?
 
a)
use less water
b)
use more water
c)
add ice cubes to cool the water
d)
break the soup cubes into smaller pieces
12.
Kool-Aid - Powder, sugar, and water
Identify the solvent 
a)
water
b)
powder
c)
sugar
d)
powder and sugar
13.
Lemonade - Water, lemon juice, and sugar
Identify the solute
a)
water
b)
lemon juice
c)
sugar and lemon juice 
14.
When no more sugar will dissolve in a glass of water, the solution is
a)
unsaturated
b)
saturated
c)
supersaturated
d)
suspended
15.

This method is a technique used in separating a less-dense substance from a denser one.

a)

decantation

b)

evaporation

c)

distillation

d)

filtration

16.

This technique is based on the differences of the boiling point of the substance in the mixture.

a)

decantation

b)

distillation

c)

filtration

d)

chromatography

17.

This involves using a strainer or a big screen to separate the components of solid mixtures.

a)

chromatography

b)

distillation

c)

sieving

d)

physical manipulation

18.

This method is used to separate metals from non metals.

a)

use of magnet

b)

physical manipulation

c)

sieving

d)

chromatography

19.

This method is useful in a pharmaceutical industry in determining the amount of each chemical in each product.

a)

distillation

b)

chromatography

c)

sieving

d)

decantation

20.

This method is used in separating soluble solid from a liquid such as salt from water.

a)

evaporation

b)

distillation

c)

decantation

d)

filtration