3-Order of Magnitude

• Order of magnitude


  A way to compare the approximate size of different objects
• Objects of the same order of magnitude

  • Apple and orange
• Pineapple is around 10 times larger than a lemon


  Pineapple is one order of magnitude larger than the lemon
• Dog is around 100 times longer than a woodlouse


  Dog is two orders of magnitude longer than the woodlouse
• Order of magnitude


  Every order of magnitude is 10 times greater than the one before
• The number of zeros tells you the order of magnitude
• Calculating order of magnitude


  1. Find how many times larger one object is than another

  2. Count the number of zeros to determine the order of magnitude