
Separation Techniques and Mixtures

Interactive Video
•
Chemistry
•
6th - 8th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two main goals of the lesson on solutions and mixtures?
To study the periodic table and atomic structure
To explore the history of chemistry and famous chemists
To classify matter as pure substances or mixtures and understand how to separate mixtures
To learn about chemical reactions and equations
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a homogeneous mixture?
Cereal
Trail mix
Kool-aid
Salad
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key characteristic of a pure substance?
It can be separated by physical processes
It has a variable composition
It is always a liquid
It cannot be separated into other kinds of matter by physical or chemical processes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you distinguish between a pure substance and a homogeneous mixture?
By their ability to dissolve in water
By their taste
By knowing the composition and whether it can be separated by physical means
By their color
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to separate iron from a mixture?
Filtration
Using a magnet
Evaporation
Decanting
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can sand be separated from water using a filter?
Because sand is magnetic
Because sand is insoluble in water
Because sand is soluble in water
Because sand is less dense than water
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What property allows salt to be separated from water through evaporation?
Salt is magnetic
Salt is insoluble in water
Salt has a higher boiling point than water
Salt is less dense than water
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