5 Forensic Science topics

Hurumanu - Fingerprints

Forensic Science

Definition:

5 Forensic Science topics;

1.  
2.  
3.  
4.  
5. 
   

    

Finger prints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1. Balloon
2. Ink Pad
3. Finger

Steps

1. Carefully roll your thumb and index finger on the ink pad.
2. Roll your finger and thumb on the balloon.
3. Blow the balloon up and see what your finger print is. 

Insert two pictures here of your fingerprints

Ink prints

Thumb print	Index finger print

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Sapphire	loop	loop
Lily	loop	loop

Dusting fingerprints:

Lifting fingerprints

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

1. Lifting and Gathering fingerprints.

Equipment:

1.   
2.   
3.   
4.   
5.   
6.  

Method: 

1. 
   
2.   
3.   
4.  
5.  
6. 
   

Results:

Lifted fingerprints

Thumb print	Index finger print

Conclusion :

To make a filtration plant using household materials

Aim: To make a filtration plant using household materials.

Water Filtration Plant

What is filtration?The action or process of filtering something.

Filtration is separating solids from liquids by adding a medium through which only the liquid can pass.
Examples are:

• Dirty Clothes
• Pool
• Air
• Oil

Materials
1. Funnel
2. Container
3. Filter Paper
4. Scissors 
5. Rocks/Pebbles
6. Sand
7. Bottles

Process - use verbs or doing words in each step 
Step 1 Cut the bottle into half.

Step 2 Put the top half upside down into the bottom half

Step 3 Add layers of filter paper, sand and pebbles

Step 4 Get 1 cup of dirty water and start pouring the water in.

Step 5 Pour the dirty water into a cup.

Findings

Write a short sentence about the water every 1 minute.
Include how much water has filtered through how fast it is dripping through and How clear the water is.

Minutes 1. 2. 3. 4. 5.
Drops per minute: 57
Watercolour: Clear Brown

Conclusion:
Today, I learnt that filtration is not only used to clean water but is also used in different ways (for example, dirty clothes, pool, air and oil.

Maths

 What we did with Mr tisch he tort us how to round up number to the nearest 10 100 1000. For example 52 if the 2 is under 5 then it will be 50 but if it above 5 then it will be 60. Heres another example 210 see how the the 1 is under 5 and the 0 is under 5 then it will be 200 because the numbers 1 and 0 are under 5 so we take them off.

Science

Name	Chemical	Image	Solid/Liquid/Gas
Lemon Juice	Citric Acid		Liquid
Salt	Sodium Chloride		Solid
Sugar	Sucrose		Solid
Vinegar	Acetic Acid		Liquid
Lemonde Bubbles	Carbon Dioxide		Gas
Onion gas	Sulfenic Acid		Gas
Baking Soda	Sodium Hydrogen Carbonate		Solid
Milk	Hydrated Sodium Ammonium Hydrogen Phosphate		Liquid
Cornflour	Starch		Solid
Banana	Isoamyl Acetate		Solid

Conclusion

Common Name: Lemon Juice ~ Chemical Name: Citric Acid ~ Liquid/Solid/Gas? = Liquid

Common Name: Salt ~ Chemical Name: Sodium Chloride ~ Liquid/Solid/Gas? = Solid

Common Name: Sugar ~ Chemical Name: Sucrose ~ Liquid/Solid/Gas? = Solid

Common Name: Acetic Acid ~ Chemical Name: Liquid ~ Liquid/Solid/Gas? = Liquid

Common Name: Lemonade Bubbles ~ Chemical Name: Carbon Dioxide  ~ Liquid/Solid/Gas? = Gas

Common Name: Onion Gas ~ Chemical Name: Sulfenic Acid   ~ Liquid/Solid/Gas? = Gas

Common Name: Baking Soda ~ Chemical Name: Sodium Hydrogen Carbonate ~ Liquid/Solid/Gas? = Solid

Common Name: Milk ~ Chemical Name: Lactose   ~ Liquid/Solid/Gas? = Liquid

Common Name: Cornflour ~ Chemical Name: Starch   ~ Liquid/Solid/Gas? = Solid

Common Name: Banana ~ Chemical Name: Isoamyl Acetate   ~ Liquid/Solid/Gas? = Solid

Home Chemistry - Science

Home Chemistry - Science ¬ Mr Palmer ¬ Introduction

Home Chemistry 

Tuesday 2nd April 2019

Aim: To learn the names of 10 household chemicals and identify if they are a solid, liquid or a gas.

Definitions:

1. Element; A single form of a chemical 
2. Compound: A mixture made up of 2 or more elements
3. Reaction: A process in which chemicals mix together to form a new substance.
4. Mixture: When two or more elements are mixed together.

Equipment:

1.     Lemon Juice
2.     Salt
3.   Sugar
4.   Vinegar
5.   Lemonade Bubbles
6.   Onion Gas
7.   Baking Soda
8.  Milk
9.  Cornflour
10. Banana

Steps:

1. Search up the objects name.
2. Put it into a table.
3. Fill out the gaps.
4. Write the conclusion

Skittles

Skittles

Aim: To separate colours from skittles by using the chromatography.

Materials;

1. Petri Dish
2. Skittles
3. Water

Process:

Step 1: Place the skittles in the Petri Dish
Step 2: Pour the water into the dish.
Step 3: Watch the water change color!


Conclusion: 
Today in science we tried the 'Skittle Experiment' where we put skittles into a clear container and the color of the skittles dissolve in the water. It didn't take much time for the colors to dissolve into the water.

The color from the skittles disolves into the water and spreads through the water. 
The 'S' in the skittle floated to the top of the water. I also learnt that Skittles taste weird when soaked in water.