Hurumanu - Science, The feet can measure the height

Hurumanu - The feet can measure the height.

THE FEET CAN MEASURE THE HEIGHT

The bones of the feet can tell a lot about a person. What do feet reveal about a person's height? Forensic anthropologists team up with law enforcers to help solve crimes.

Bones of the feet can reveal an interesting fact about an individual. Let's combine math with forensics to see how.

Aim:  To use forensic science techniques to measure the height of a criminal.

Material:

1.  Human - Foot/height
2. 1 metre Ruler

Steps:

1.  Get a metre ruler
2.  Measure the foot length
3.  Measure you height
4.  Record it on the chart

Findings:

Name	Foot  (cm)	Height (cm)
Chloe. M	25cm	1m & 62cm
Keghan	24cm	1m 50cm
Chloe. T	21cm	1m 44cm

Divide the length of each person's foot by his/her height. then multiply it by 100. 

Record of the dividing and multiply:

Chloe . M: 15.4320987654

Keghan:

Chloe.T: 14.5833333333

Conclusion: 

I had 25 cm for my foot and my height is 162cm. Im surprised. Keghan had 24cm for his foot he also had 150 cm for his height. Chloe.T had 21cm for, her foot whilst having 144cm for her height. We found these findings with a metre ruler.

Fingerprints - Forensics Science

Forensic Science

Definition:

Fingerprints are how police can fiqure out who had done the scene and whos the crimminal

5 Forensic Science topics;

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

    

Finger prints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1. Fingers x2 - Index and Thumb (own fingers)  
2. Ink Pad  
3. Ballon

Steps

1. Put your fingers in the inkpad  
2.   Ligthly press it onto the balloon
3.   Blow it up
4.    Record what happens
5.   take photos  

Insert two pictures here of your fingerprints

Ink prints

Thumb print	Index finger print
Its hard to see	Its Hard to see

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Chloe	Its a different type of pattern	different pattern

Conclusion:

 I didnt really know what type of fingerprints I had but I know that it was hard to tell. This experiment was really different for me as I never knew how to acctually do this and I also didnt know that its what the police do but without the ink. This was really fun. 

Questions:

Do people always have the same type of fingerprint on their thumb and index finger?
No they dont
What was the most common type of fingerprint in your group?
There was none as I was the only one in my group.

Dusting fingerprints:

Lifting fingerprints

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

1. Lifting and Gathering fingerprints.

Equipment:

1.   Plastic
2.   White Powder
3.   Brush
4.   Black Paper
5.  Tape
6. Magnfying glass

Method: 

1. Press your finger on your previous plastic
2. Press it onto the stiky side of tape 
3. Place the tape on the black paper
4. Use a magnifying glass
5.  Look at the findings
6. Record the findings

Results:

Lifted fingerprints

Thumb print	Index finger print

Conclusion Questions:

What could you do to improve your results next time?

Do it propaly as it was hard to see what I had as to apose I have different Fingerprints

Why do you think fingerprints are useful to crime scene investigators?
They can really see who is the crimminal as if they dont find them they will still be out there