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