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Grade 7 Microscope Magnification Worksheet with Answers

Grade 7 (US) · Year 8 (UK) · Class 7 (India) · Science

Unit 1: Cells & OrganismsCellsNGSS MS-LS1-1

Calculating total magnification and using microscope parts. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Microscope Magnification

Grade 7 · Science

Score___ / 12

Name

Class

Date

Learning goal: Cells · NGSS MS-LS1-1

Directions: Read each question carefully and write your answer on the line.

Example

Which part holds the slide?

Answer: the stage

RememberUsing a microscope

Eyepiecelook through (10×)Objective lens4×, 10×, 40×Stageholds the slideLightshines up throughFocus knobscoarse, then fineMagnificationeyepiece × objective
  1. 1

    The total magnification is 40× and the eyepiece is 10×. What is the objective lens?

  2. 2

    The eyepiece is 15× and the objective lens is 10×. What is the total magnification?

  3. 3

    The eyepiece is 15× and the objective lens is 100×. What is the total magnification?

  4. 4

    The eyepiece is 15× and the objective lens is 4×. What is the total magnification?

  5. 5

    The total magnification is 400× and the eyepiece is 10×. What is the objective lens?

  6. 6

    The total magnification is 150× and the eyepiece is 15×. What is the objective lens?

  7. 7

    The eyepiece is 10× and the objective lens is 40×. What is the total magnification?

  8. 8

    The total magnification is 1000× and the eyepiece is 10×. What is the objective lens?

  9. 9

    The total magnification is 60× and the eyepiece is 15×. What is the objective lens?

  10. 10

    The total magnification is 1500× and the eyepiece is 15×. What is the objective lens?

  11. 11

    The total magnification is 100× and the eyepiece is 10×. What is the objective lens?

  12. 12

    The total magnification is 600× and the eyepiece is 15×. What is the objective lens?

★ Challenge corner for fast finishers

You are in a closed room with a candle, a match and a lamp. What do you light first?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/7/microscope

Answer key (click to show)
  1. 1.4×
  2. 2.150×
  3. 3.1500×
  4. 4.60×
  5. 5.40×
  6. 6.10×
  7. 7.400×
  8. 8.100×
  9. 9.4×
  10. 10.100×
  11. 11.10×
  12. 12.40×
  13. ★the match (challenge corner)

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