Science Practice Sheet-1 with answers
Grade: VI
Subject: Science Duration: 1 ½ hours
1 mark questions
1. Name the solution that can be added to detect the presence of starch in the food.
ans: Iodine
2. Give examples of synthetic fibres.
ans: Nylon, rayon acrylic and polyester.
2 mark questions
3. What are natural fibres? Give any two examples.
ans: Natural fibres are obtained from natural sources such as animals and plants. cotton, jute, silk wool, etc.
4. Trisha is showing symptoms such as pale skin and dark patches below her eyes. She also complains about headache. Identify the disease and its cause.
ans: • Anaemia
• It is caused due to the deficiency of iron in the body
5. Identify the fibres from their properties:
(a) fibres which are thick and coarse to touch
(b) fibres which do not absorb water well
ans: (a) Jute
(b) Synthetic
6. A person’s diet not only depends on his/her age, but also on the type of work. Justify the statement.
ans: • A working person who does very little physical activity uses less energy and needs less amount of energy food.(carbohydrates)
• While, a labourer working on the field needs carbohydrate rich food.
7. The actual measurement of objects cannot be taken using hand span, we need standard units for that purpose. Justify the statement.
ans: Hand span of two people may not always be equal. The standard units remain constant from person to person.
3 mark questions
8. What is classification? How materials are classified on the basis of lustre? Give an example of each.
ans: Arranging different objects or materials based on their similarities and differences is known as classification.
Shiny materials and dull materials shiny: gold, silver and brass dull: rubber and wood
9. (a) Why cannot we use a metre scale to measure circumference of an object?
(b) How will you measure the length of a curved line?
(c) What is the SI unit of mass?
ans: (a) It cannot bend
(b) A string or a thread
(c) Kilogram
10. (a) What are the climatic conditions required to grow cotton plants?
(b) In which states of India is cotton mainly grown?
(c) Explain the process ginning
ans: (a) The cotton plant grows well in black soil and warm climate.
(b) Cotton is mainly grown in the states of Maharashtra, Gujarat and Andhra Pradesh
(c) Cotton fibres are separated from the cotton seeds by the process called ginning.
11. Ram is showing the symptom of drying of the eyeball. His friend advised him to include eggs, milk, butter, carrots, etc in his food diet.
(a) Identify the disease Ram is suffering from?
(b) What is the reason for drying of the eyeball?
(c) What values were shown by Ram’s friend?
ans: (a) Ram is suffering from night blindness.
(b) The tear glands do not produce tears.
(c) Caring, knowledge and awareness
5 mark questions
12. (a) How will you distinguish whether a given material is transparent, translucent or opaque?
ans: • A transparent material allows light to completely pass through it.
• A translucent material allows only a little light to pass through it.
• An opaque material does not allow material to pass through it.
(b) When oil is added to water, it forms a separate layer and floats on the surface. Give reason. What we call such liquids?
ans: • Oil do not mix with water therefore forms a separate layer on the surface of the water .
• Immiscible liquid
13. (a) Given below are examples which show motions of objects around us.
Identify the motion.
i. Merry go round
ii. A ball is thrown in the air at an angle
iii. an insect flying
ans: i. Circular motion
ii. Curvilinear motion
iii. Random motion
(b) Convert the following:
i. 3 centimetres into millimetres
ii. 56 gm into miligrams
ans: i. 1 centimetres = 10 millimetres
Therefore, 3 centimetres = 3x10 = 30 millimetres
ii .1 gram = 1000 milligram
56 gm = 56 × 1000 = 56000 milligram
2 mark questions (Practical skill based questions)
14. Seema takes water into two beakers and labels them as A and B. She adds sugar in beaker A and powdered glass in beaker B. She stirs water in both the beakers. What will she observe and conclude?
ans: • Sugar in beaker in beaker B, does not dissolve in water
• Hence, sugar is a soluble substance and powdered glass is an insoluble substance
15. While measuring length of a pen, Shreyas placed the pen as shown in the diagram.
What precautions should Shreyas take while,
(a) placing the object along the ruler and
(b) Noting down the reading
ans: (a) The zero mark on the ruler should coincide with one pen
(b) The position of the eye should be just above the point where you want to note down the reading .
(Practical skill based questions)
Ques .Seema takes water into two beakers and labels them as A and B. She adds sugar in beaker A and powdered glass in beaker B. She stirs water in both the beakers. What will she observe and conclude?
ans. Sugar in beaker A, dissolves in water whereas, powdered glass in beaker B, does not dissolve in water Hence, sugar is a soluble substance and powdered glass is an insoluble substance.
Ques .While measuring length of a pen, Shreyas placed the pen as shown in the Shreyas placed the pen as shown in the diagram
What precautions should Shreyas take while,
a) placing the object along the ruler and
b) Noting down the reading
ans. a)The zero mark on the ruler should coincide with one end of the pen.
b) The position of the eye should be just above the point where you want to note down the reading .
Ques.Nisar took some food items in a test tube and added sodium hydroxide and copper sulphate solution to it. The solution turns violet.
(a) What will he conclude from the observation of the experiment?
(b) What precaution should be taken while performing this test? Why?
ans: (a) Protein is present in the food
(b) Wash your hands with cold water,because it is a strong alkali.
Subject: Science Duration: 1 ½ hours
1 mark questions
1. Name the solution that can be added to detect the presence of starch in the food.
ans: Iodine
2. Give examples of synthetic fibres.
ans: Nylon, rayon acrylic and polyester.
2 mark questions
3. What are natural fibres? Give any two examples.
ans: Natural fibres are obtained from natural sources such as animals and plants. cotton, jute, silk wool, etc.
4. Trisha is showing symptoms such as pale skin and dark patches below her eyes. She also complains about headache. Identify the disease and its cause.
ans: • Anaemia
• It is caused due to the deficiency of iron in the body
5. Identify the fibres from their properties:
(a) fibres which are thick and coarse to touch
(b) fibres which do not absorb water well
ans: (a) Jute
(b) Synthetic
6. A person’s diet not only depends on his/her age, but also on the type of work. Justify the statement.
ans: • A working person who does very little physical activity uses less energy and needs less amount of energy food.(carbohydrates)
• While, a labourer working on the field needs carbohydrate rich food.
7. The actual measurement of objects cannot be taken using hand span, we need standard units for that purpose. Justify the statement.
ans: Hand span of two people may not always be equal. The standard units remain constant from person to person.
3 mark questions
8. What is classification? How materials are classified on the basis of lustre? Give an example of each.
ans: Arranging different objects or materials based on their similarities and differences is known as classification.
Shiny materials and dull materials shiny: gold, silver and brass dull: rubber and wood
9. (a) Why cannot we use a metre scale to measure circumference of an object?
(b) How will you measure the length of a curved line?
(c) What is the SI unit of mass?
ans: (a) It cannot bend
(b) A string or a thread
(c) Kilogram
10. (a) What are the climatic conditions required to grow cotton plants?
(b) In which states of India is cotton mainly grown?
(c) Explain the process ginning
ans: (a) The cotton plant grows well in black soil and warm climate.
(b) Cotton is mainly grown in the states of Maharashtra, Gujarat and Andhra Pradesh
(c) Cotton fibres are separated from the cotton seeds by the process called ginning.
11. Ram is showing the symptom of drying of the eyeball. His friend advised him to include eggs, milk, butter, carrots, etc in his food diet.
(a) Identify the disease Ram is suffering from?
(b) What is the reason for drying of the eyeball?
(c) What values were shown by Ram’s friend?
ans: (a) Ram is suffering from night blindness.
(b) The tear glands do not produce tears.
(c) Caring, knowledge and awareness
5 mark questions
12. (a) How will you distinguish whether a given material is transparent, translucent or opaque?
ans: • A transparent material allows light to completely pass through it.
• A translucent material allows only a little light to pass through it.
• An opaque material does not allow material to pass through it.
(b) When oil is added to water, it forms a separate layer and floats on the surface. Give reason. What we call such liquids?
ans: • Oil do not mix with water therefore forms a separate layer on the surface of the water .
• Immiscible liquid
13. (a) Given below are examples which show motions of objects around us.
Identify the motion.
i. Merry go round
ii. A ball is thrown in the air at an angle
iii. an insect flying
ans: i. Circular motion
ii. Curvilinear motion
iii. Random motion
(b) Convert the following:
i. 3 centimetres into millimetres
ii. 56 gm into miligrams
ans: i. 1 centimetres = 10 millimetres
Therefore, 3 centimetres = 3x10 = 30 millimetres
ii .1 gram = 1000 milligram
56 gm = 56 × 1000 = 56000 milligram
2 mark questions (Practical skill based questions)
14. Seema takes water into two beakers and labels them as A and B. She adds sugar in beaker A and powdered glass in beaker B. She stirs water in both the beakers. What will she observe and conclude?
ans: • Sugar in beaker in beaker B, does not dissolve in water
• Hence, sugar is a soluble substance and powdered glass is an insoluble substance
15. While measuring length of a pen, Shreyas placed the pen as shown in the diagram.
What precautions should Shreyas take while,
(a) placing the object along the ruler and
(b) Noting down the reading
ans: (a) The zero mark on the ruler should coincide with one pen
(b) The position of the eye should be just above the point where you want to note down the reading .
(Practical skill based questions)
Ques .Seema takes water into two beakers and labels them as A and B. She adds sugar in beaker A and powdered glass in beaker B. She stirs water in both the beakers. What will she observe and conclude?
ans. Sugar in beaker A, dissolves in water whereas, powdered glass in beaker B, does not dissolve in water Hence, sugar is a soluble substance and powdered glass is an insoluble substance.
Ques .While measuring length of a pen, Shreyas placed the pen as shown in the Shreyas placed the pen as shown in the diagram
What precautions should Shreyas take while,
a) placing the object along the ruler and
b) Noting down the reading
ans. a)The zero mark on the ruler should coincide with one end of the pen.
b) The position of the eye should be just above the point where you want to note down the reading .
Ques.Nisar took some food items in a test tube and added sodium hydroxide and copper sulphate solution to it. The solution turns violet.
(a) What will he conclude from the observation of the experiment?
(b) What precaution should be taken while performing this test? Why?
ans: (a) Protein is present in the food
(b) Wash your hands with cold water,because it is a strong alkali.
