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Class 6 Exam  >  Class 6 Tests  >  Olympiad Test: Sorting And Separation Of Materials -1 - Class 6 MCQ

Olympiad Test: Sorting And Separation Of Materials -1 - Class 6 MCQ


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20 Questions MCQ Test - Olympiad Test: Sorting And Separation Of Materials -1

Olympiad Test: Sorting And Separation Of Materials -1 for Class 6 2024 is part of Class 6 preparation. The Olympiad Test: Sorting And Separation Of Materials -1 questions and answers have been prepared according to the Class 6 exam syllabus.The Olympiad Test: Sorting And Separation Of Materials -1 MCQs are made for Class 6 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Sorting And Separation Of Materials -1 below.
Solutions of Olympiad Test: Sorting And Separation Of Materials -1 questions in English are available as part of our course for Class 6 & Olympiad Test: Sorting And Separation Of Materials -1 solutions in Hindi for Class 6 course. Download more important topics, notes, lectures and mock test series for Class 6 Exam by signing up for free. Attempt Olympiad Test: Sorting And Separation Of Materials -1 | 20 questions in 40 minutes | Mock test for Class 6 preparation | Free important questions MCQ to study for Class 6 Exam | Download free PDF with solutions
Olympiad Test: Sorting And Separation Of Materials -1 - Question 1
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The rate of sedimentation is increased by adding ____ to the water.

Detailed Solution for Olympiad Test: Sorting And Separation Of Materials -1 - Question 1

Alum is added to purify water as Aluminium Sulphate. It is a coagulant. When Alum is added to the muddy water, the mud particles accumulate to settle down.

Olympiad Test: Sorting And Separation Of Materials -1 - Question 2
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The process followed to separate grains form the stalks is called

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Olympiad Test: Sorting And Separation Of Materials -1 - Question 3
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Look at the picture below and find out the method by which components in the mixture are separated.

Detailed Solution for Olympiad Test: Sorting And Separation Of Materials -1 - Question 3

Sieving is defined as a method in which two or more components of different sizes are separated from a mixture on the basis of the difference in their sizes. Thus, it cannot separate two substances in a mixture which have the same size. For example, it cannot separate a mixture of chalk powder from flour.

Olympiad Test: Sorting And Separation Of Materials -1 - Question 4
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When a bottle of soda water is opened, carbon dioxide escapes, producing a fizz. This is due to:
Detailed Solution for Olympiad Test: Sorting And Separation Of Materials -1 - Question 4

When a bottle of soda water is sealed, the carbon dioxide (CO2) gas is dissolved in the water under high pressure. When you open the bottle, the pressure is released, and as a result, the solubility of carbon dioxide in the water decreases. This decrease in solubility causes the carbon dioxide to escape from the liquid, producing the fizz that you observe. Temperature also plays a role, as gases are generally less soluble in liquids at lower temperatures, but the primary factor here is the decrease in pressure when the bottle is opened.

Olympiad Test: Sorting And Separation Of Materials -1 - Question 5
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Butter is separated from curd by the process of:
Olympiad Test: Sorting And Separation Of Materials -1 - Question 6
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Which of the following is not characteristic of solids?
Olympiad Test: Sorting And Separation Of Materials -1 - Question 7
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When we blow air into the balloon, it inflates because:
Olympiad Test: Sorting And Separation Of Materials -1 - Question 8
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Select a good conductor of heat among the following options.
Olympiad Test: Sorting And Separation Of Materials -1 - Question 9
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The process in which particles of a solid settle down in a liquid is known as:
Olympiad Test: Sorting And Separation Of Materials -1 - Question 10
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Which of the following is essential to perform winnowing activity?
Detailed Solution for Olympiad Test: Sorting And Separation Of Materials -1 - Question 10

Wind winnowing is an agricultural method developed by ancient cultures for separating grain from straw. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation.

Olympiad Test: Sorting And Separation Of Materials -1 - Question 11
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Handpicking method is effective in:
Olympiad Test: Sorting And Separation Of Materials -1 - Question 12
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Which of the following is an example of irreversible change?
Detailed Solution for Olympiad Test: Sorting And Separation Of Materials -1 - Question 12

- Baking a cake is an example of an irreversible change.
- When you bake a cake, ingredients like flour, sugar, and eggs undergo chemical changes.
- These changes result in a new substance with different properties, which cannot revert to the original ingredients.
- In contrast, freezing or boiling water involves physical changes where the water can return to its original state (liquid water) without changing its chemical structure.

Olympiad Test: Sorting And Separation Of Materials -1 - Question 13
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The picture below shows a mixture of beads and flour in a bowl.

Q. Rehan wants to separate the beads from the flour in the bowl. What separation method can he use?
Detailed Solution for Olympiad Test: Sorting And Separation Of Materials -1 - Question 13

Correct answer is Sieving. Sieving is a method in which components of different sizes are separated using a sieve.

Olympiad Test: Sorting And Separation Of Materials -1 - Question 14
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Saimaa is making herself a cup of coffee. She adds in sugar to her coffee. What will happen if she continues adding more coffee powder to her drink?
Olympiad Test: Sorting And Separation Of Materials -1 - Question 15
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Which of the following is incorrect?
Olympiad Test: Sorting And Separation Of Materials -1 - Question 16
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Study the picture below and answer the questions that follow.

Q. What is the name of the process taking place in the picture?
Olympiad Test: Sorting And Separation Of Materials -1 - Question 17
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The picture below shows a teabag in a glass of water.What is the function of the teabag?
Olympiad Test: Sorting And Separation Of Materials -1 - Question 18
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Fill in the blanks below, using the helping words provided in the box. Each word can be used only once.
filtration, soluble, permanent, substance, reversible, temporary
1. When a sliced apple turns brown, a new  has formed.
2. Burning plastic is a  change.
3. We can separate insoluble solids from liquids by .
4. A  change takes place when a material that has undergone a change can return to its original form.
5. When a solid is able to dissolve in water, we say that it is  in water.
6. A change is  when no new substances are formed.

Q. Choose the correct sequence:
Olympiad Test: Sorting And Separation Of Materials -1 - Question 19
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Samarth mixed the following things in a bowl, then carried out the following steps.

Q. Which two steps are not in a correct sequence?
Step 1: Remove the pencils by sorting them by hand.
Step 2: Use a magnet to separate the iron nails.
Step 3: Pour water into the mixture of sand and sugar.
Step 4: Remove the copper nails by sorting by hand, or by using a sieve.
Step 5: Use filtration to separate the sand.
Step 6: Use evaporation to obtain the sugar.
Olympiad Test: Sorting And Separation Of Materials -1 - Question 20
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Match the objects given below with the materials from which they could be made. Remember, an object could be made from more than one material and a given material could be used for making many objects.

Q. Choose the correct sequence
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