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Separation of Substances Class 6 Worksheets with Answers: Download free worksheets with answers for CBSE Class 6 Science Chapter 5 – Separation of Substances. Our worksheets, created by experienced science teachers, adhere to the latest NCERT syllabus. These resources are designed to help you grasp key concepts and prepare thoroughly for your CBSE exams. Improve your learning experience with our free worksheets and master the techniques for solving problems related to the separation of substances. Need more study materials? Check out additional Class 6 Science worksheets and NCERT solutions to enhance your exam preparation and achieve higher scores.
Separation of Substances Class 6 Worksheets
Chapter 5 of the Class 6 Science syllabus, according to the NCERT curriculum, is titled “Separation of Substances.” This chapter introduces students to various techniques for separating the components of mixtures, emphasizing the practical application of these methods in everyday life. By exploring these techniques, students gain foundational knowledge essential for advanced scientific studies. Class 6 Science worksheets for this chapter include exercises and activities designed to reinforce these concepts and aid in exam preparation.
Key Topics Covered in This Chapter
- Understanding Mixtures and Pure Substances: Discover the differences between mixtures and pure substances.
- Separation Techniques: Investigate various methods used to separate mixtures based on their physical properties.
- Filtration: Learn how to separate solid particles from liquids using filters.
- Evaporation: Understand the process of removing a liquid from a solution to retrieve the solid component.
- Handpicking and Sieving: Explore methods for separating larger particles from smaller ones.
- Decantation: Master the technique of carefully pouring a liquid to leave the sediment behind.
- Distillation: Learn how to separate substances using their different boiling points.
Separation of Substances Class 6 Worksheets Chapter 5 with Answers
1. What is the method to separate a mixture of sand and salt?
a) Evaporation
b) Filtration
c) Distillation
d) Handpicking
Answer: b) Filtration
2. What is the primary reason for using a sieve?
a) To dissolve substances
b) To mix substances
c) To separate substances based on size
d) To filter liquids
Answer: c) To separate substances based on size
3. Which separation method would you use to separate a mixture of oil and water?
a) Filtration
b) Evaporation
c) Decantation
d) Handpicking
Answer: c) Decantation
4. What happens during the process of evaporation?
a) Solids are separated from liquids
b) Liquids are separated from other liquids
c) Liquid turns into vapor
d) Mixtures are filtered
Answer: c) Liquid turns into vapor
5. Which method is most effective for separating a mixture of sand and sugar?
a) Filtration
b) Handpicking
c) Evaporation
d) Sedimentation
Answer: a) Filtration
6. What is the process called where a liquid is turned into vapor and then back into liquid?
a) Filtration
b) Evaporation
c) Distillation
d) Decantation
Answer: c) Distillation
7. To separate a mixture of salt and water, which method is used?
a) Filtration
b) Evaporation
c) Decantation
d) Magnetism
Answer: b) Evaporation
8. Which of the following methods is used to separate components of a mixture based on differences in solubility?
a) Sieving
b) Evaporation
c) Filtration
d) Handpicking
Answer: b) Evaporation
9. How do you separate a mixture of iron filings and sulfur powder?
a) Filtration
b) Magnetism
c) Decantation
d) Sieving
Answer: b) Magnetism
10. What is the process of separating a solid from a liquid using a filter paper called?
a) Filtration
b) Sedimentation
c) Evaporation
d) Distillation
Answer: a) Filtration
Worksheet for Class 6 Chapter 5 Separation of Substances (Moderate Level)
1. What separation method is used to separate a mixture of sand and salt after dissolving the salt in water?
a) Filtration
b) Decantation
c) Evaporation
d) Sedimentation
Answer: a) Filtration
2. What is the technique used to separate a mixture of grains and husk?
a) Decantation
b) Sieving
c) Evaporation
d) Magnetism
Answer: b) Sieving
3. Which method would you use to purify drinking water?
a) Evaporation
b) Filtration
c) Magnetism
d) Handpicking
Answer: b) Filtration
4. In which process is salt obtained from seawater?
a) Filtration
b) Decantation
c) Evaporation
d) Distillation
Answer: c) Evaporation
5. Which method is used to remove mud from water?
a) Filtration
b) Decantation
c) Sieving
d) Handpicking
Answer: a) Filtration
Long Answer Type Questions
Q1. What is winnowing, and what are its purposes in agriculture?
Answer: Winnowing is an agricultural process used to separate grain from chaff, which is the husk of the grain. It is a traditional method that involves the following steps and serves several important purposes:
Purpose of Winnowing
- Removal of Chaff: The main goal of winnowing is to separate chaff from grain. Chaff includes husks and other inedible debris that must be removed to obtain clean grain for eating or further processing.
- Improvement of Grain Quality: By removing chaff and other impurities, winnowing improves the quality of the grain. This is crucial for both the market value of the grain and its usability in food products.
- Enhancement of Grain Storage: Properly winnowed grain is less likely to harbor mold or pests, which can lead to spoilage. Clean grain has a longer shelf life, making it better suited for storage.
- Preparation for Further Processing: Winnowing prepares the grain for further agricultural processes, such as milling, by ensuring that only the grain is processed and not mixed with unwanted materials.
Importance in Agriculture
Efficiency: Winnowing is an efficient and cost-effective method that uses natural wind or mechanical means to separate grain from chaff, which is especially useful in small-scale farming.
Simplicity: The process of winnowing is simple and can be performed with minimal equipment, making it accessible for farmers across different regions.
Overall, winnowing is a fundamental agricultural technique that ensures the purity and quality of grain, which is essential for both consumption and commercial trade.
Q2. How would you separate a mixture of oil and water?
Answer: To separate a mixture of oil and water, you can use a method called decantation or separation using a separating funnel. Here’s a detailed process:
- Allow Mixture to Settle: Let the mixture stand undisturbed for a few minutes. Oil and water will separate into two distinct layers, with oil floating on top of the water due to differences in density.
- Separation Using a Separating Funnel:
- Pour the mixture into a separating funnel.
- Allow the layers to separate completely.
- Open the tap of the funnel to drain the bottom layer of water into a separate container.
- After all the water has been drained, close the tap and pour out the oil from the top.
This method works because oil and water do not mix due to their different densities and polarities.
Q3. Describe the process of separating a mixture of iron filings and sulfur powder.
Answer: To separate a mixture of iron filings and sulfur powder, you can use a method called magnetic separation. Here’s how it can be done:
- Use a Magnet: Hold a magnet over the mixture of iron filings and sulfur powder. The iron filings will be attracted to the magnet due to their magnetic properties, while the sulfur powder will remain unaffected.
- Remove Iron Filings: Carefully lift the magnet away from the mixture, taking the iron filings with it. You can then tap or brush the filings off the magnet into a separate container.
- Collect Sulfur Powder: After removing the iron filings, the remaining substance in the container will be sulfur powder.
Benefits of Solving Separation of Substances Class 6 Worksheets with Answers
- Deepens Conceptual Understanding: Helps clarify key concepts like filtration and evaporation.
- Offers Regular Practice: Provides opportunities to apply concepts and improve problem-solving skills.
- Facilitates Immediate Correction: Includes answer keys for quick self-assessment and correction.
- Develops Critical Thinking: Encourages analysis of different separation methods.
FAQs on Separation of Substances Class 6 Worksheets with Answers
What is separation Class 6 short answer?
Separation is the process of dividing different substances or materials from a mixture to get them separately.
What is one word for separation of substances Class 6?
One word for the separation of substances in Class 6 Science is winnowing.
What is assertion and reason in Class 6 separation of substances?
Assertion is a statement about a fact, while Reason explains why the assertion is true. In separation of substances, an assertion could be Filtration separates solids from liquids, and the reason could be A strainer allows only liquids to pass through, leaving solids behind.
What is a strainer Class 6?
A strainer is a tool used to separate solid particles from liquids by using a mesh or holes.
