Fun Dichotomous Keys Activity - Up and Moving Activity!

Rated 4.92 out of 5, based on 13 reviews
13 Ratings
Science of Curiosity
Grade Levels
6th - 12th
Resource Type
Formats Included
  • PDF
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Science of Curiosity


A super fun up-and-moving activity to review the use of Dichotomous Keys! Small QR codes will 'infect' them with one of eight types of bacteria. A partner scans their QR code to see an image of the bacteria. Students must use the Bacteria Dichotomous Key to diagnose their disease! The included worksheet gives them space to record their own bacteria infection, as well as four of their classmates.

This activity is always a hit in my own classroom! Easy to set up and a fun way to review dichotomous keys!

Cellphones have built-in QR code readers. You can also use any laptop with a camera by gong to a website like this free QR code scanner:

Resource includes

  • Full Teaching guide
  • Eight QR Codes linked to eight different types of bacteria - some of the bacteria are antibiotic resistant!
  • Easy to read Dichotomous Key
  • Student Sheet to record the types of bacteria they identify
  • Answer Key


Check out these other Biology EOC Review Up and Moving activities!

**Stay Curious!**

Total Pages
Answer Key
Teaching Duration
30 minutes
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