
Effects of Alum on Sedimentation

Interactive Video
•
Science, Chemistry
•
5th - 8th Grade
•
Hard

Liam Anderson
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What materials are needed to study the process of sedimentation?
Four glass tumblers, water, sand, clay, a wooden rod, and alum
Two glass tumblers, water, sand, and a metal rod
Five glass tumblers, water, clay, and a wooden rod
Three glass tumblers, water, sand, clay, and a plastic rod
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is added to the water in tumbler A during the experiment setup?
Clay
Sand
Alum
Salt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the sand particles in tumbler A after a few minutes?
They dissolve in the water
They remain suspended in the water
They float on the surface
They settle quickly at the bottom
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of preparing an alum solution in the experiment?
To increase the temperature of the water
To dissolve the sand particles
To accelerate the sedimentation process
To change the color of the water
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After adding alum solution to tumbler C, what change is observed?
The water becomes more muddy
The clay particles settle faster
The sand particles dissolve
The water evaporates
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which particles settle first in the experiment?
Clay particles in tumbler B
Sand particles in tumbler A
Clay particles in tumbler C
Alum particles in tumbler D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which tumbler remains muddy throughout the experiment?
Tumbler D
Tumbler B
Tumbler A
Tumbler C
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main conclusion of the experiment regarding alum?
Alum dissolves the particles completely
Alum slows down the sedimentation process
Alum has no effect on sedimentation
Alum accelerates the sedimentation process
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What effect does alum have on the clay particles in tumbler C?
It makes them dissolve
It makes them float
It makes them larger and settle faster
It has no effect
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