Forensics

Forensics

http://sciencing.com/list-forensics-techniques-6392795.html

1. What is the definition of forensic science?
The Application of Scientific Methods and techniques to the investigation of crime 

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

2. Name 5 different kinds of activities used in forensic sciences and find a picture for each.

https://www.aafs.org/students/choosing-a-career/types-of-forensic-scientists-disciplines-of-aafs/

3. Name 5 jobs that would use forensics to investigate crime 

Fingerprints

Aim: To look at the different types of fingerprints.

Material: 

1.   Ink 
2.   Ballon 
3.   Wipes 
4.   Paper Towels  

Steps

1. Get the ink 
2. press your thumb into the Ink 
3.  Press thumb on the ballon 
4.   Blow up the ballon 
5.   see what kind of fingerprint you have 

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 ( Thumb)	Fingerprint 2 (finger)
Mahaliya	Whirl	Whirl
May	Whirl	Whirl
Latisha	Loop	Loop

Summary of findings:

It was easy and fun to figure out what fingerprint you have.

Hidden fingerprints:

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

1. Lifting and Gathering fingerprints.

Equipment:

1.   Powder
2.   An object that is  Clear 
3.   A brush  

Method; 

1.  Get you clear object ready 
2.   Then run your finger up and down on your nose or through your hair
3.  Press you finger on your clear object 
4.  Get you brush add some powder where you put your fingerprint and it will show your fingerprint 

Plants

AIM: TO LEARN ABOUT THE NATURE OF PLANTS

LEAVES

Leaf type: Simple / CompoundExample: 
Plant type: Deciduous / Evergreen

Leaf colour: Green
Photo of leaf: 

Plant drawing:

MY LEAF COLLECTION

1.

Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound
Leaf colour:

Photo of leaf:
Plant drawing:

2. 

Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound

Photo of leaf:

Plant drawing:

3.  

Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound

Photo of leaf:
Plant drawing:

4. 

Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound

Photo of leaf:
Plant drawing:

5.  

Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound

Photo of leaf:
Plant drawing:

RESEARCH 4 TYPES OF PLANTS

Carnivorous plants
Pine trees 
Fruit trees
NZ Natives

Example

Title: NZ Natives
Examples: 
1. 
2.
3.
4.

Habitat: Where do they live?
Country:
Climate:

Sherbet

Making Sherbet

Using the following recipe you need to make sherbet.

Sherbet recipe

Recipe: 

1tsp of powdered drink crystals (eg refresh)
1/4 tsp citric acid
1/4 tsp tartaric acid
1/4 tsp -baking soda.
Put all ingredients into a ziplock bag, stir, and enjoy.

Materials:

1.  Icing Sugar

2.  Raro

3.  Citric Acid 

4.  Baking Soda

5.  Tartaric Acid 

Findings:  Easy to make and easy to figure out what it tastes like.

Sherbet
Taste	It tasted a bit sour and sweet. ( needed more Raro)
Colour	Started of white, Once added raro it changed to pink. ( depends on the color of the Raro

White Powder

What is that white powder?

Today you will be a forensic chemist. 

A bag of white powder has been confiscated by airport customs. You need to find out what white powder it is?

Aim: To learn about the makeup of different white powders.

There are a number of different white powders in our everyday life. Some of these are harmful and others are not. Test the four white powders listed to see which one has been found at the airport.

Here are some examples of everyday kitchen white powders.

Flour

Cornflour

Sugar

Salt

Baking Soda

Baking Powder

Icing Sugar

Tartaric Acid

Citric Acid

Gluten Free Flour

Materials

1.  Sugar
2.  Baking Soda
3.  Corn Flour
4.  Salt
5.  Water
6.  Vinger 
7. Iodine

8. pipette 
Upload a photo of each powder.

1.  Cornflour
2.  Baking Soda
3.  Salt
4. Sugar 

On the black cardboard using a magnifier glass, you need to record what you see. You will be given a small amount of 4 white powders on your cardboard. Look at them under your microscope and record what you see. 
Do not mix the powders or taste the powders.

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	White	White	White	White
Texture	Rough	Rough	Smooth	Smooth
Smell	No Smell	No Smell	No Smell	No Smell
Iodine	Changed color kinda into a burnt toffee	Changed color kinda into a burnt toffee	Rolled off the Baking soda	It just rolled off the cornflour
Water	Did nothing	DId nothing	Make it fizz	Make it into ublick
Vinegar	Nothing	Nothing	Made it fizz	Made it a lil sticky at first then dried up after a couple of seconds

Leafs

AIM: TO LEARN ABOUT THE NATURE OF PLANTS

Plants fall into two categories:

1. Evergreen

2. Deciduous

Find three examples of each:

Evergreen: 

1.  Pine Tree

2. Kauri 

3.  Rimu

Deciduous;

1.  Oak Tree

2.   Walnut

3.  Apple 

Example: 

Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound
Leaf colour: Green
Photo of leaf: 

MY LEAF COLLECTION

1.

Plant type: Evergreen 

Leaf type: Compound  
Leaf colour: Orange 

Photo of leaf:

Plant drawing:

2. 

Plant type: Deciduous

Leaf type: Simple
Leaf Colour: Red 

Photo of leaf:

3.  

Plant type:  Evergreen

Leaf type:  Compound
Leaf Colour: Green 

Photo of leaf:

4. 

Plant type: Deciduous 

Leaf type: Simple 

Leaf Colour: Green 

Photo of leaf:

Simple                                 Compound   

Plant drawing:

5.  

Plant type:  Evergreen

Leaf type:  Compound

Photo of leaf:

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)

2)

3)

4)

5)

Process

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Sugar Crystals

Ratio: 1 cup sugar to 1/2 cup water

Materials

1) 

2)

3)

4)

5)

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

1)

2)

3)

4)

5)

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
Sugar
Salt

What crystals worked out best and why?: