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Test Description: Solutions/mixtures
Instructions: Answer all questions to get your test result.
1) Which of the following is the best example of a solution?
A
a) water and gravel
B
iron filings and sand
C
trail mix
D
ice tea
2) Which of the following substances is soluble in water?
A
sand
B
pepper
C
lemon juice
D
baking soda
3) Which factor will NOT cause a solute to dissolve more quickly?
A
adding ice
B
shaking
C
heating the water
D
stirring
4) A liquid used to dissolve a solute is called a __________________.
A
solute
B
solvent
C
solubility
D
solution
5) characteristics of a gas
A
have a definite volume
B
particles that flow freely,
C
tightly packed particles
D
particles that do not move and have no shape
6) How could you make a more concentrated solution?
A
Add more solute
B
Put the solution in the refrigerator
C
Add more solvent
D
Pour out some of the solution
7) characteristics of a solid
A
particles that flow freely
B
particles that do not move and have no shape
C
tightly packed particles
D
more loosely packed particles that flow onto one another
8) Which substance would dissolve in water the most quickly?
A
sand
B
baking soda
C
sugar cube
D
salt crystals
9) What is the best way to separate a mixture of sand and iron filings
A
use tweezers to pick out iron filings
B
use a strainer
C
use filter paper to catch the sand
D
use a magnet
10) Which of the following is an example of a solution?
A
oil and water
B
salt and paper
C
sand and rocks
D
sugar and vinegar
11) Which of the following is an example of a mixture?
A
food coloring and water
B
lemondade
C
fruit salad
D
salt and water
12) best way to separate sand and water
A
fuse filter paper to trap the sand
B
use a magnet
C
let the water evaporate
D
use tweezers
*select an answer for all questions
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