identifying fingerprints

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Identifying Fingerprints By: Teniesha Dawkins 8th grade

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Identifying Fingerprints. By: Teniesha Dawkins  8th grade. What are Fingerprints?. Take a look at your fingers, now look at your fingertips. Do you notice anything on your hands? What about those lines on your fingertips? - PowerPoint PPT Presentation

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Page 1: Identifying Fingerprints

Identifying Fingerprints

By: Teniesha Dawkins 8th grade

Page 2: Identifying Fingerprints

What are Fingerprints?• Take a look at your fingers, now look at your fingertips. •  • Do you notice anything on your hands? What about those lines on

your fingertips?

• Those lines are called fingerprints. Everybody has their own unique fingerprints.

• Did you know that not even twins have the same fingerprints?

• Fingerprinting is one way you can identify a person. Even though there are many ways to identify a person one really good way is to try to identify a person by their fingerprints. 

Page 3: Identifying Fingerprints

Will I be able to identify individuals who took cookies from various cookie jars by

 fingerprints let on the jars?

Hypothesis:  I will be able to identify the individuals who took cookies from

each jar by their fingerprints. 

Page 4: Identifying Fingerprints

How Fingerprints Help Forensic Scientists Identify

People.•Since everybody’s fingerprints are different it makes it easier for a person to be identified.  

For example, if somebody commits a crime like robbing a bank you can use certain powders determined by the color of the safe and also the counters.

•If the item is dark then you can use a white aluminum powder.  If it is light then you can use fine carbon powders.

• If the surface is hard and it doesn't absorb anything then you can just dust the surface and then the print or prints will become visible.

Page 5: Identifying Fingerprints

Names of Fingerprint Marks  

•Since there are many fingerprints they have names so that we won't get confused. Just like they are many fingerprints, there are many names for the fingerprints.

• For example, fingerprints with wavy characteristics are called waves. Therefore, if you see a fingerprint that has similar marks like waves and then fingerprints with a more difficult mark like a radial loop you would know who the fingerprints belonged to.

Page 6: Identifying Fingerprints

 Procedures           •I am going to pick three students.

•I going to get six black glass cookie jars.

•I am get six different kinds of cookies.

•I will put one kind of cookie in each of the six jars.

•I will leave the room for two minutes as the students take the cookies from the cookie jars.

•By using my knowledge about the characteristics of fingerprints I will be able to determine who took the cookies from the cookie jars.

•I will lift the finger prints from each jar and compare them with the prepared hard copy finger print database of the students in the experiment.

Cookies Satara Rashan Joshua Kyla Nia Prince

Oreo

Chips Ahoy

Lornadoone

NutterButter

Wheat Thins

Satara Rashan Joshua Kyla Nia Prince

R R R R R R

L L L L L L

Fingerprint Database

Comparison Prints

Page 7: Identifying Fingerprints

Satara Rashan Joshua Kyla Nia Prince

           

           

           

           

       

 

Page 8: Identifying Fingerprints

Cookies Satara Rashan Joshua Kyla Nia Prince

Oreo            

Chips Ahoy            

Lornadoone            

NutterButter            

Wheat Thins        

 

Page 9: Identifying Fingerprints

This chart shows some types of fingerprints

and their names.

Page 10: Identifying Fingerprints

This is another chart but the prints are more

sophisticated than the other prints.

Page 11: Identifying Fingerprints

A fingerprinting database diagram like the one above can be helpful in solving crimes when comparing prints left at a crime scene. 

Page 12: Identifying Fingerprints

This is  one of the powders Forensic Scientists use to dust off surfaces to find

fingerprints

Page 13: Identifying Fingerprints

Conclusion

If you have knowledge of finger print types you can

identify who they belong to as long as you have a finger prints to compare them.

Page 14: Identifying Fingerprints

      My  Resources

 Good URL’s for my project    • http://www.sciencenewsforkids.org/articles/20041215/Feature1.as - A website explaining how forensic science or crime scene investigation works and it also makes it easy for kids to understand.      • http://en.wikipedia.org/wiki/Fingerprint  - A website about fingerprints and how they are found. 

•Google docs•Gmail•PowerPoint•Google Search•I will share my project with 3-8 graders by use the Smart board, project and laptop.

Page 15: Identifying Fingerprints

            More Resources

                      Good URL’s for my project   http://static.howstuffworks.com/gif/fingerprint-2.gif

Types of fingerprints and their name’s.