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STD 4 Science set 2

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1) . What is the process of a solid turning directly into a gas without becoming a liquid first?

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2)  

  1. Which of the following is an example of a synthetic material?

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3) . Which of the following is a characteristic of a gas?

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4) What is the process of a liquid turning into a solid called?

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5) What causes the seasons on Earth?

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    6)
  1. What happens to a solid when it is heated?

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7) What is the outer layer of the Earth called?

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8) What is the process of a gas turning directly into a solid without becoming a liquid first?

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9) What is the measure of the amount of matter in an object?

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    10)
  1. Which of the following is an example of a gas?

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11) Which of the following is NOT a state of matter?

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12) What is the process of a solid turning into a liquid called?

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13) Which planet is known for its prominent ring system?

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    14)
  1. What is the basic building block of matter?

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15) What is the property of matter that makes it take up space

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16) Which of the following is an example of a gas?

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17) Which of the following is an example of a liquid?

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    18)
  1. In which state, matter has a definite shape and volume?

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    19)
  1. What happens to a liquid when it is cooled?

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20) What is the measure of how tightly packed the matter in an object is?

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    21)
  1. Which of these is an example of a natural material?

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22)  Which state of matter takes the shape of its container and has a definite volume?

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23) . What is the state of water at room temperature?

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24) What is the largest dwarf planet in our solar system?

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25) What happens to the particles of matter when it is heated?

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