Forensic Science Fingerprints

Forensic Science

1. Write a the definition of forensic science in your own words?

https://en.oxforddictionaries.com/definition/forensic

Looking at different Things to find Crimes.This Is what Police,Scientists use to investigate things.  

2. What are 5 different things that forensic scientists do?
    Look at the "What you will do" section on the careersnz website.

1. Visit Crime Scenes to Find
2.  Take Notes and Draw Sketches of crime Scenes
3. Analyse Physical evidence such as firbes,Glass,Debris,Firearms,Bullets and marks made by Tools or weapens.
4. Identify drugs found on people,in body fluids or at crime scenes.
5. Analyse biological evidence such as hair,Blood and other body fluids.

Finger prints

Aim: To look at the different types of fingerprints.

Materials: 

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Steps

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Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Haylee		Loop
Narnia		Whorl
Meleana		Arch

Questions:

Do people always have the same type of fingerprint on their thumb and index finger?


What was the most common type of fingerprint in your group?

Hidden fingerprints:

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

1. Lifting and Gathering fingerprints.

Equipment:

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Method: 

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Results:

Insert a photo of your lifted fingerprints here:

Conclusion Questions:

Did you manage to lift clear fingerprints?

What could you do to improve your results next time?

Why do you think fingerprints are useful to crime scene investigators?

Crystals

 Chemistry - Crazy Crystals

Aim: To learn about a saturated solution and how to make crystals

Definition of solution: 

A liquid mixture, when something is dissolved into a liquid (eg: sugar in water) 

Definition of saturated: 

Having or holding as much as can be absorbed of something (when no more sugar or borax can be dissolved into the water)

In groups of three you will make three different types of crystals and compare the results.

Borax Crystals

Ratio; 3 Tablespoons Borax per 1/2 cup water

Materials

1)A cup or Glass

2) Pipe cleaner

3)Borax

4)Popsicle Stick

5)string

6) Warm water

7) Spoon

Process

Step 1: We got A cup or glass

Step 2:Put 2 Teaspoons Of borax and 1/2 a cup of Warm Water

Step 3:Add ingredients to the cup Mix it all together with the Popsicle stick 

Step 4:Tie Your string to Your Popsicle stick 

Step 5:

Step 6:

Sugar Crystals

Ratio: 1 cup sugar to 1/2 cup water

Materials

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2)

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Process

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Salt Crystals

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

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Process

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Findings

Describe your crystals in the table below.

Crystal Type	Shape (Describe the shape)	Size (of individual crystals)	Hardness (Crumbly to Rock Hard)
Borax	Star	Small	hard And a bit soft
Sugar	Long	Medium	Hard
Salt

What crystals worked out best and why?:

Conclusion:

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After watching the videos as a class, explain how the following crystals are formed:

Type	Explanation
Salt	How to Make Salt They Get Sea Water And Put that Sea water Into Ponds And then Sun Goes on to the ponds It then Evaporate And The water goes away and then they collect The Salt.
Sugar	Sugar Cane,Cut it up,roll it/Squish,Get The juice,Heat it,Syrup,crystallisation
Snowflakes

CRYSTAL TYPES

AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS

Salt Crystals

Sugar Crystals

Borax Crystals

7 different crystal shapes

The 7 types of crystals

Type	Number of sides	2 examples	Image
Triclinic	7	Turquoise Rhodonite
Monoclinic
Orthombic
Trigonal
Hexagonal
Cubic
Tetragonal