

Filtration and Evaporation
Presentation
•
Science, Chemistry
•
7th Grade
•
Practice Problem
•
Easy
+4
Standards-aligned
ma. marcelo
Used 43+ times
FREE Resource
2 Slides • 13 Questions
1
Filtration and Evaporation

2
Multiple Choice
Why can mixtures be separated relatively easily?
Mixtures can be easily separated as the particles of each substance are chemically joined
(bonded) to each other.
Mixtures can be easily separated as the particles of each substance are NOT chemically joined
(bonded) to each other.
3
Multiple Choice
Evaporation is the change of state from ____ to ____
liquid to solid
solid to liquid
liquid to gas
gas to liquid
4
Multiple Choice
Arrange the steps to separate pure salt from rock salt.
A. Stir the mixture
B. Crush up the rock salt using mortar and pestle.
C. Heat the filtrate.
D. Filter the mixture.
E. Put the crushed rock salt into a beaker and add water.
B - A - E- D - C
B - E - A - D - C
B - E - D - A - C
5
Multiple Choice
Arrange these pictures in the correct order to show how to separate pure salt from rock salt.
D- A- C- B
C- D- A- B
D- C- A- B
C- D- B- A
6
Scenario 1
When sand and water are mixed together in a beaker, the sand does not dissolve.
To separate the sand out from the water, you must pour the mixture
through a piece of filter paper, folded into a funnel and with a conical
flask placed underneath. The sand should remain trapped in the filter
paper and the water in the conical flask should now be clear.
7
Multiple Choice
Q: Sand does not dissolve in water, so we call it _____
solute
solvent
soluble
insoluble
8
Multiple Choice
Q: The sand and water together in the beaker is called a
solvent
solution
mixture
solute
9
Multiple Choice
Q: The sand is the _______ because _______
residue because it is left behind in the filter paper.
filtrate because it is left behind in the filter paper.
residue because it has passed though the filter.
residue because it has passed though the filter.
10
Multiple Choice
Q: The liquid at the end of the experiment is called the ____________ because _________>
the residue because it has passed through the filter
the filtrate because it has passed through the filter
the filtrate because it is left behind in the filter paper
the residue because it is left behind in the filter paper
11
Multiple Choice
Q: The paper is the ______ because ______.
filter because it is the material the filtrate passes through.
residue because it is left behind in the filter paper.
filtrate because it has passed through the filter.
12
Open Ended
Explain why sand can be separated from water using this technique.
13
Open Ended
Siddiqui carries out the experiment as described in scenario 1. However, his water still has sand in it. Suggest what Siddiqui might have done wrong.
14
Open Ended
Siddiqui carries out the experiment as described in scenario 1. However, his water still has sand in it. How could you improve Siddiqui’s experiment to ensure clear water?
15
Open Ended
Marissa carries out the experiment as described in question 1, but uses salt instead of sand. Describe what the particles would look like in the end filtrate.
Filtration and Evaporation

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