Class 9 Science Quiz: Elements, Machines, and Plant Processes

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Questions and Answers

What is the symbol for the element with atomic number 3?

  • H
  • B
  • Li (correct)
  • Be

Which of the following is a type of simple machine?

  • Telescope
  • Microscope
  • Screwdriver (correct)
  • Hammer

What is the process that plants use to make their own food?

  • Fermentation
  • Photosynthesis (correct)
  • Respiration
  • Transpiration

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Study Notes

Elements

  • Lithium (Li) is the element with atomic number 3.

Simple Machines

  • There are several types of simple machines, including:

Photosynthesis

  • Plants make their own food through a process called photosynthesis.

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