Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science Competitive Exam: Certification Test 1719

Waves of Energy MCQ App & e-Book: MCQ 1719

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MCQ: 1719

When sound travels, the air molecules vibrate

  1. parallel to the sound direction
  2. perpendicular to the sound direction
  3. opposite to the sound direction
  4. in the direction of the sound

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Waves of Energy Competitive Exam: Class 7 Science App & eBook MCQ

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Waves of Energy MCQ App (iOS & Android)

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7th Grade Science MCQ App (Android & iOS)

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6th Grade Science MCQ App