1. #8 What is on your body (20 times) that makes you unique like a snowflake? Fingerprints

2. #7 Did I buy tickets for the Teacher Variety Show yet?

3. For lab next week…..  White bread  Strawberry Jam  Orange or Apricot Jam  Strawberry or Vanilla Sugar Wafers  Twizzlers (Pull & Peel)

4. Fingerprint Patterns How do we identify?

5. Fingerprints –3 essential facts 1.Formed during fetal development and remain unchanged 2.Fingerprints are unique 3.Can be classified systematically because of pattern of friction ridges which are also present on fingers, palms, and toes

6. Fingerprints Three basic patterns –Arches, Loops, and Whorls Three basic patterns can be subdivided into eight types: –Arches Plain, Tented –Loops Ulnar, Radial –Whorls Plain Whorl, Central pocket loop, Double loop, Accidental

7. Fingerprint classifications Loop Whorl Arch

8. Loop Loops have one Delta.

9. Whorl X Whorls have two Deltas

10. Arch X Arches do NOT have any Deltas

11. Plain Arch

13. Tented Arch

14. Tented arch

15. Radial Loop of left hand showing in red the loop pattern

16. Radial Loop

17. Ulnar loop of the left hand

18. Central Pocket Whorl Plain Whorl

19. Central Pocket Whorl

20. Plain Whorl

22. In a double loop whorl there must be separate inner loops as shown in the blue and red lines

23. Double Loop

24. Accidental Whorl

26. Are you really THAT unique? LoopsWhorl Plain Arch Tented Arch Double Loop