Science - Fingerprints - balloons

Definition: 

apply scientific knowledge and skills to investigating crimes and helping the police find or eliminate crime suspects. They may also do research into developing or improving

5 Forensic Science topics;

1.  DNA
2.  Fingerprints
3. Clothes 
4.  Footprints
5. Ballistics

    

Finger prints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1.   Fingers'
2.  Inc pad 
3.   Balloon

Steps  

1. Get the inc pad and the balloon ready   
2. Put your thumb in the inc and then press on the balloon lightly   
3. You then blow up the balloon  and then deflate it again
4. Do the same but with your index finger   
5. Blow the balloon up and tie it  

Conclusion: This was a very cool experiment because we found out what fingerprint we had , even tho many people had the same they are all different in their own was , in this experiment I found out I have an arch fingerprint.

Lifting fingerprints

Aim: To learn how to lift hidden fingerprints from an object.

1. Lifting and Gathering fingerprints.

Equipment:

1.   Brush
2.   Plastic
3.  Baby powder 
4. Tape  
5.   Finger
6. Black card 
7. Magnifying glass 

Method: 

1. Get your plastic, brush, and baby powder
2.   Press hard  on the plastic to create a fingerprint
3.   Get the powder and brush some powder powder onto your fingerprint
4. Cut a small piece of tape and put it on the fingerprint
5. then put the tape on the black cardboard to revel  what type of fingerprint you have 

Results:

Lifted fingerprints

Conclusion:In conclusion it was really fun and it has been really interesting and 

something I could do next time to make it better is being more steady when I am pressing on the plastic , I think fingerprints are handy because it helps investigators with who the criminal is and where they have been.