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Following are general statements about water drops. (a) Surface tension is responsible for the spherical shape of the water drops. (b) Even in the absence of gravitation, water drops have a spherical shape. (c) Formation of water drops occurs, if the mass of the water is stretched. Which of the above statement/statements is/are correct?
Ayesha put two drops of oil on the lid of her tiffin box. Next to that, she put two drops of water and two drops of sugar solution. She tilted the lid. She saw some drops slid down quickly, while some were left behind. Which drops slid down her tiffin box the fastest?
Following is the sequence of activities for conceptual development of 3-D shapes. They are in random sequence. (i) Comparing two shapes and identifying the similarities and differences (ii) Constructing 3-D shapes with play-dough (iii) Making shapes using nets (iv) Constructing shapes using geometrical tools such as compass, ruler Which of the following represents the correct order of sequence?
Which of the following statements is/are true regarding teaching 'shapes' at the primary level? 1. Shapes should be introduced using real life examples. 2. Shapes should be taught using several example in their surroundings. 3. Shapes can not be taught at primary level.
An elementary school mathematics teacher decides to make a 'unit plan' on “Geometrical Shapes”. He writes the following expected learning outcomes.  (i) Recognize various shapes (ii) Differentiate between various shapes (iii) Identify sides, angles and vertices of shapes Which of the following levels of Van Hiele's geometric reasoning is he assessing his students on?
Which of the two conclusions can be drawn based on the given statements? Statement: Some drops are jam. Some bottles are drops. Conclusion : 1. Some drops are empty. 2. Bottles are jams.
Two statements are given, followed by two conclusions numbered I and II. Assuming that the information given in the statements given in the statements is true, even if it appears to be different than commonly known facts, decide which of the conclusions logically follow(s) from the statements.  Statements: 1. All spoons are rounds.  2. All rounds are shapes. Conclusions: I. Some shapes are rounds.  II. All spoons are shapes. 
Advantages of Casting are: (I) Can create complex part geometries, 3-D shapes (II) Can create both external and internal shapes and large hollow shapes (III) It is a near net shape process for small to large parts (IV) Very good mechanical strength can be obtained for as-cast component
Mixture A and Mixture B contain consist of 40 liters and 60 liters of mixtures of liquids X and Y in different proportions. Quantity of liquid X in mixture A is 10 liter less than the quantity of liquid X in mixture B. The total quantity of liquid Y in both the mixtures is 40 liters. If 30% of liquid is taken from mixture A and put into mixture B, then what will be the ratio of liquid X to liquid Y in mixture B?
A bottle contains 20 litres of liquid A. 4 litres of liquid A is taken out of it and replaced by same quantity of liquid B. Again 4 litres of the mixture is taken out and replaced by same quantity of liquid B. What is the ratio of quantity of liquid A to that of liquid B in the final mixture?