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10. You are provided with the following materials - vinegar, honey, mustard oil, water, glucose and
You are provided with the following materials - vinegar, honey, mustard oil, water, glucose and wheat flour.
Make any two pairs of materials where one material is soluble in the other. Now, make two pairs of materials
where one material remains insoluble in the other material.
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มุมมอง: 20

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9. Who am I? Identify me on the basis of the given properties. I have lustre. ________ I can be1:159. Who am I? Identify me on the basis of the given properties. I have lustre. ________ I can be
9. Who am I? Identify me on the basis of the given properties. I have lustre. ________ I can be
มุมมอง 84 ชั่วโมงที่ผ่านมา
Who am I? Identify me on the basis of the given properties. I have lustre. I can be easily compressed. I am hard and soluble in water. You cannot see clearly through me. I have mass and volume but you cannot see me. Make your own Who am I? Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
8. Imagine you have two mysterious materials, X and Y. When you try to press material X, it1:278. Imagine you have two mysterious materials, X and Y. When you try to press material X, it
8. Imagine you have two mysterious materials, X and Y. When you try to press material X, it
มุมมอง 94 ชั่วโมงที่ผ่านมา
Imagine you have two mysterious materials, X and Y. When you try to press material X, it feels rigid and does not change its shape easily. On the other hand, material Y easily changes its shape when you press it. Now, when you mix both materials in water, only material X dissolves completely, while material Y remains unchanged. What can materials X and Y be? Can you identify whether material X ...
7. Air is all around us but does not hinder us from seeing each other. Whereas, if a wooden0:527. Air is all around us but does not hinder us from seeing each other. Whereas, if a wooden
7. Air is all around us but does not hinder us from seeing each other. Whereas, if a wooden
มุมมอง 24 ชั่วโมงที่ผ่านมา
Air is all around us but does not hinder us from seeing each other. Whereas, if a wooden door comes in between, we cannot see each other. It is because air is and the wooden door is . Choose the most appropriate option: transparent, opaque translucent, transparent opaque, translucent transparent, translucent Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revi...
6. You need to have containers for collection of (i) food waste, (ii) broken glass and (iii)1:126. You need to have containers for collection of (i) food waste, (ii) broken glass and (iii)
6. You need to have containers for collection of (i) food waste, (ii) broken glass and (iii)
มุมมอง 34 ชั่วโมงที่ผ่านมา
You need to have containers for collection of (i) food waste, (ii) broken glass and (iii) wastepaper. Which materials will you choose for containers of these types of waste? What properties of materials do you need to think of? Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
5. We see chairs made up of various materials, such as wood, iron, plastic, bamboo, cement and stone1:285. We see chairs made up of various materials, such as wood, iron, plastic, bamboo, cement and stone
5. We see chairs made up of various materials, such as wood, iron, plastic, bamboo, cement and stone
มุมมอง 44 ชั่วโมงที่ผ่านมา
We see chairs made up of various materials, such as wood, iron, plastic, bamboo, cement and stones. Following are some desirable properties of materials which can be used to make chairs. Which materials used to make chairs fulfil these properties the most? Hardness (does not bend or shake on sitting even after long use). Lightweight (easy to lift or to take from one place to another). Does not ...
4. 4. Give your reasons for this. State whether the statements given below are True [T] or Fals1:114. 4. Give your reasons for this. State whether the statements given below are True [T] or Fals
4. 4. Give your reasons for this. State whether the statements given below are True [T] or Fals
มุมมอง 24 ชั่วโมงที่ผ่านมา
4. Give your reasons for this. State whether the statements given below are True [T] or False [F]. Correct the False statement(s). (i) Wood is translucent while glass is opaque. (ii) Aluminium foil has lustre while an eraser does not. (iii) Sugar dissolves in water whereas sawdust does not. (iv) An apple is a matter because it occupies no space and has mass. Recommendations for Term 2 www.amazo...
3. The containers which are used to store materials in shops and at home are usually1:003. The containers which are used to store materials in shops and at home are usually
3. The containers which are used to store materials in shops and at home are usually
มุมมอง 74 ชั่วโมงที่ผ่านมา
The containers which are used to store materials in shops and at home are usually transparent. Give your reasons for this Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
2. Unscramble the letters (Column I) and match with their properties (Column II)1:062. Unscramble the letters (Column I) and match with their properties (Column II)
2. Unscramble the letters (Column I) and match with their properties (Column II)
มุมมอง 254 ชั่วโมงที่ผ่านมา
Unscramble the letters (Column I) and match with their properties (Column II) Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
1. Visit your kitchen and observe how your parents have organised various edibles. Can you1:231. Visit your kitchen and observe how your parents have organised various edibles. Can you
1. Visit your kitchen and observe how your parents have organised various edibles. Can you
มุมมอง 114 ชั่วโมงที่ผ่านมา
Visit your kitchen and observe how your parents have organised various edibles. Can you suggest a better sorting method? Write it in your notebook. Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
6. The mean and standard deviation of a group of 100 observations were found to be 20 and 3,7:056. The mean and standard deviation of a group of 100 observations were found to be 20 and 3,
6. The mean and standard deviation of a group of 100 observations were found to be 20 and 3,
มุมมอง 127 ชั่วโมงที่ผ่านมา
6. The mean and standard deviation of a group of 100 observations were found to be 20 and 3, respectively. Later on it was found that three observations were incorrect, which were recorded as 21, 21 and 18. Find the mean and standard deviation if the incorrect observations are omitted. Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT So...
5. The mean and standard deviation of 20 observations are found to be 10 and 2, respectively. On7:185. The mean and standard deviation of 20 observations are found to be 10 and 2, respectively. On
5. The mean and standard deviation of 20 observations are found to be 10 and 2, respectively. On
มุมมอง 37 ชั่วโมงที่ผ่านมา
5. The mean and standard deviation of 20 observations are found to be 10 and 2, respectively. On rechecking, it was found that an observation 8 was incorrect. Calculate the correct mean and standard deviation in each of the following cases: (i) If wrong item is omitted. (ii) If it is replaced by 12. Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Note...
4. Given that bar {x} is the mean and sigma^2 is the variance of n observations .3:554. Given that bar {x} is the mean and sigma^2 is the variance of n observations .
4. Given that bar {x} is the mean and sigma^2 is the variance of n observations .
มุมมอง 27 ชั่วโมงที่ผ่านมา
Given that \small \bar {x} is the mean and \small \sigma^2 is the variance of \small n observations .Prove that the mean and variance of the observations \small ax_1,ax_2,ax_3,....,ax_n, are \small a\bar{x} and \small a^2 \sigma^2 respectively, \small (a eq 0). Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www....
3. The mean and standard deviation of six observations are 8 and 4, respectively. If each o5:203. The mean and standard deviation of six observations are 8 and 4, respectively. If each o
3. The mean and standard deviation of six observations are 8 and 4, respectively. If each o
มุมมอง 137 ชั่วโมงที่ผ่านมา
3. The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations. Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
2. The mean and variance of 7 observations are 8 and 16, respectively. If five of the observations7:442. The mean and variance of 7 observations are 8 and 16, respectively. If five of the observations
2. The mean and variance of 7 observations are 8 and 16, respectively. If five of the observations
มุมมอง 57 ชั่วโมงที่ผ่านมา
2. The mean and variance of 7 observations are 8 and 16, respectively. If five of the observations are 2, 4, 10, 12, 14. Find the remaining two observations. Recommendations for Term 2 www.amazon.in/shop/kwatratuitioncenter For Short Notes, Revision Notes And NCERT Solution. Visit Us at- www.kwatratuitioncenter.com/
1. The mean and variance of eight observations are 9 and 9.25, respectively. If six of the10:021. The mean and variance of eight observations are 9 and 9.25, respectively. If six of the
1. The mean and variance of eight observations are 9 and 9.25, respectively. If six of the
มุมมอง 67 ชั่วโมงที่ผ่านมา
1. The mean and variance of eight observations are 9 and 9.25, respectively. If six of the
9. Tasneem wants to make a metre scale by herself. She considers the following materials1:379. Tasneem wants to make a metre scale by herself. She considers the following materials
9. Tasneem wants to make a metre scale by herself. She considers the following materials
มุมมอง 3819 ชั่วโมงที่ผ่านมา
9. Tasneem wants to make a metre scale by herself. She considers the following materials
8. A rollercoaster track is made in the shape shown in Fig. 5.19. A ball starts from point A and1:138. A rollercoaster track is made in the shape shown in Fig. 5.19. A ball starts from point A and
8. A rollercoaster track is made in the shape shown in Fig. 5.19. A ball starts from point A and
มุมมอง 2019 ชั่วโมงที่ผ่านมา
8. A rollercoaster track is made in the shape shown in Fig. 5.19. A ball starts from point A and
7. Observe different objects around you. It is easier to express the lengths of some objects in mm1:597. Observe different objects around you. It is easier to express the lengths of some objects in mm
7. Observe different objects around you. It is easier to express the lengths of some objects in mm
มุมมอง 1619 ชั่วโมงที่ผ่านมา
7. Observe different objects around you. It is easier to express the lengths of some objects in mm
6. Give two examples each for linear, circular and oscillatory motion.1:146. Give two examples each for linear, circular and oscillatory motion.
6. Give two examples each for linear, circular and oscillatory motion.
มุมมอง 1919 ชั่วโมงที่ผ่านมา
6. Give two examples each for linear, circular and oscillatory motion.
5. Measure the height of your friend and express it in (i) metres (ii) centimetres and (iii)1:005. Measure the height of your friend and express it in (i) metres (ii) centimetres and (iii)
5. Measure the height of your friend and express it in (i) metres (ii) centimetres and (iii)
มุมมอง 1719 ชั่วโมงที่ผ่านมา
5. Measure the height of your friend and express it in (i) metres (ii) centimetres and (iii)
4. Suppose the distance between your school and home is 1.5 km. Express it in metres.0:484. Suppose the distance between your school and home is 1.5 km. Express it in metres.
4. Suppose the distance between your school and home is 1.5 km. Express it in metres.
มุมมอง 2119 ชั่วโมงที่ผ่านมา
4. Suppose the distance between your school and home is 1.5 km. Express it in metres.
3. Which of the following is not a standard unit of measuring length? (i) millimetre (ii)0:583. Which of the following is not a standard unit of measuring length? (i) millimetre (ii)
3. Which of the following is not a standard unit of measuring length? (i) millimetre (ii)
มุมมอง 419 ชั่วโมงที่ผ่านมา
3. Which of the following is not a standard unit of measuring length? (i) millimetre (ii)
2. Read the following statements and mark True (T) or False (F) against each. (i) The motion of1:222. Read the following statements and mark True (T) or False (F) against each. (i) The motion of
2. Read the following statements and mark True (T) or False (F) against each. (i) The motion of
มุมมอง 819 ชั่วโมงที่ผ่านมา
2. Read the following statements and mark True (T) or False (F) against each. (i) The motion of
1. Some lengths are given in Column I of Table 5.5. Some units are given in Column II. Match1:091. Some lengths are given in Column I of Table 5.5. Some units are given in Column II. Match
1. Some lengths are given in Column I of Table 5.5. Some units are given in Column II. Match
มุมมอง 519 ชั่วโมงที่ผ่านมา
1. Some lengths are given in Column I of Table 5.5. Some units are given in Column II. Match
13. You are given a sample of a solution. How would you check the possibility of it being an iodine1:1613. You are given a sample of a solution. How would you check the possibility of it being an iodine
13. You are given a sample of a solution. How would you check the possibility of it being an iodine
มุมมอง 1321 ชั่วโมงที่ผ่านมา
13. You are given a sample of a solution. How would you check the possibility of it being an iodine
12. Why are millets considered a healthy choice of food? Can eating just millets suffice1:1612. Why are millets considered a healthy choice of food? Can eating just millets suffice
12. Why are millets considered a healthy choice of food? Can eating just millets suffice
มุมมอง 621 ชั่วโมงที่ผ่านมา
12. Why are millets considered a healthy choice of food? Can eating just millets suffice
11. While using iodine in the laboratory, a few drops of iodine fell on Mishti’s socks and a few0:5011. While using iodine in the laboratory, a few drops of iodine fell on Mishti’s socks and a few
11. While using iodine in the laboratory, a few drops of iodine fell on Mishti’s socks and a few
มุมมอง 821 ชั่วโมงที่ผ่านมา
11. While using iodine in the laboratory, a few drops of iodine fell on Mishti’s socks and a few
10. What do you think of Raman’s statement, “All starches are carbohydrates but not all carbohydrate2:3110. What do you think of Raman’s statement, “All starches are carbohydrates but not all carbohydrate
10. What do you think of Raman’s statement, “All starches are carbohydrates but not all carbohydrate
มุมมอง 421 ชั่วโมงที่ผ่านมา
10. What do you think of Raman’s statement, “All starches are carbohydrates but not all carbohydrate
9. Sugar is an example of carbohydrates. Sugar is tested with iodine solution but it does not change0:579. Sugar is an example of carbohydrates. Sugar is tested with iodine solution but it does not change
9. Sugar is an example of carbohydrates. Sugar is tested with iodine solution but it does not change
มุมมอง 521 ชั่วโมงที่ผ่านมา
9. Sugar is an example of carbohydrates. Sugar is tested with iodine solution but it does not change