What is the primary focus of the lesson on separating mixtures?

Separation Techniques in Mixtures

Interactive Video
•
Science, Chemistry, Biology
•
4th - 5th Grade
•
Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Creating new mixtures
Combining different substances
Understanding chemical reactions
Separating mixed substances
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method involves using hands to separate large solids?
Sieving
Decanting
Filtering
Hand sorting
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the sieving method, what happens to the smaller particles?
They remain in the sieve
They evaporate
They pass through the sieve
They dissolve in water
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key characteristic of the settling method?
It uses a funnel
It involves shaking the mixture
It relies on gravity to separate components
It requires heating the mixture
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During settling, why does the solid settle at the bottom?
It dissolves in the liquid
It reacts with the liquid
It is heavier than the liquid
It is lighter than the liquid
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of decanting?
To evaporate a liquid
To filter out impurities
To separate a solid from a liquid
To mix two liquids
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why must decanting be done slowly?
To prevent the liquid from evaporating
To allow the liquid to cool down
To mix the components thoroughly
To ensure the solid remains in the original container
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