Science (Forensic science)

Forensic Science

Definition:

relating to or denoting the application of scientific methods and techniques to the investigation of crime.

5 Forensic Science topics;

1.  White powder
2.  Fingerprints
3.  D.N.A
4.  Ballistics
5. Fibers

    

Fingerprints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1.   Ballon
2.   Inkpad
3.   Finger

Steps

1.   Get a ballon don't blow it up yet.
2.   Carefully roll your thumb or index finger on the ink pad.
3.   Put your fingerprint on the ballon.
4.    Blow the balloon up.
5.   Look at what fingerprint you have.

Insert two pictures here of your fingerprints

Ink prints

Thumbprint	Index fingerprint

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)
Tyler	Arch	Arch
Tobey	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

Thumbprint	Index fingerprint

Conclusion :
Today in science we were learning about forensic so fingerprints we got a balloon and we had to put our index finger on the ink pad then put it on the balloon but we can't blow the balloon up until we put our fingerprint on it cause when we blow it up our fingerprint will get bigger so we could see the print.

Science (Crystal video)

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

Crystal video

Definition of the 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

Borax Crystals time-lapse video

Ratio; 3 Tablespoons Borax per 1/2 cup water

Materials

1) Cup

2) Borax

3) 1x Ice cream sticks

4) Water

5) Peg

6) Pimp cleaners

Process

Step 1: Get a 1x cup

Step 2: Write the name Borax on the cup.

Step 3: Tap water in a cup 

Step 4:  Put Borax in the water

Step 5:  Make Pimp cleaners into a star

Step 6: Put the star on a peg and put in water

Sugar Crystals

Sugar crystals video

Ratio: 1 cup sugar to 1/2 cup water

Materials

1)  a Cup

2)  String

3)  1x Ice cream stick

4)  Sugar

5)  Warm water

Process

Step 1: get a cup

Step 2: Put warm water 

Step 3: Put sugar in the cup

Step 4: Mix the water

Step 5: Put a string on a Stick and put it int the water

Step 6:

Salt Crystals

Salt crystals time-lapse video

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

1) Salt 

2) cup

3) Pen

4) Water

5) Stick

6) string

Process

Step 1: Tip water in a cup

Step 2: Put salt in the water

Step 3: Mix the cup

Step 4: tie a string around a stick and put it in the water

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		round and sharp medium	It's is hard
Sugar		Small Cube shape	Medium hard
Salt		Medium and small cube	Medium hard

What crystals worked out best and why?:
Borax because it is bigger and I say it's better plus the other ones are small so it's not that cool.

Conclusion:
Making the crystals was fun because I got to make a crystal and I've never done it before. That's what made it fun and it was interesting how it was getting made the crystals that we made were borax, salt and sugar crystals so now when I go home I can make heaps of crystals and show it off even if it's not real so I learned in science how to make crystals.

Maths

In maths, this term we have been doing maths about multiplication so we would have questions like a school has $267 and they are going to the zoo and it cost $10 for one student and there 24 of them so will this school have enough money to take all the kids to the zoo. Then we would have to do 20 x 10 = $200 now we know that 20 kids can go to the zoo the there will be $67 left and there are 4 kids left so $67-$40= $27 so they will have $27 left. Sometimes would be hard and easy here is a picture of my work.

This a picture of my work from the past week, we have been working on a New Zealand curriculum mathematics stage 6 books. The work that was assigned to our group was kind of easy when we finished our work there was a challenge at the end, the challenge is you have to work with a partner or a group and you have to throw three dice and make a three digit number with it then work out how many different ways you could make that amount using $100 notes, $10 notes and $1 coins. 

Science (Forensic science)

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 lives. 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.

You will be given a small amount of 4 white powders on your cardboard. On the black cardboard using a magnifying glass look at the powders.

Look at them under your magnifying glass and record what you see. 

These are the four powders we will be using. Upload a photo of each powder. 

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

Before you add the iodine, vinegar or water you will need to divide each powder into 3.

Materials
1.  Cornflour

2.  Sugar

3.  Baking soda

4.  salt

5.  Water

6.  Vinegar

7. Magnifier

8. cardboard paper

9.

Steps

1. Get cardboard paper and magnifier 

2. Fold the paper into four

3. write the name sugar, cornflour, baking soda, and salt in each square

4.  Put in the ingredients that you wrote

5.  Use the magnifier to look at the ingredients6. 

7

Findings:

Words to use: Absorbed, spread, frothed, fizzed, melted, blob,

	Sugar	Salt	Baking Soda	Cornflour
Appearance (White)	white	white	white	white
Grains (small, medium large)	medium	small	large	small
Smell (Strong, none)	none	strong	none	none
Iodine	absorbed	absorbed	fizzed	absorbed
Water	absorbed	absorbed	absorbed	bonce off
Vinegar	absorbed	absorbed	made baking soda big	bonce off

Write a conclusion about your findings. ( 4 plus sentences)
Use the Hexagon activity to give you some more ideas.

The sugar It was small like when we add the liquids it would just absorb it.

The salt was the same as the sugar but instead, the liquids would go to the bottom of the salt

The Baking Soda the liquids would stay where you put it

The cornflour the liquids would bounce off the cornflour




Do all the same experiments on the mystery white powder. What is it?
Baking soda it's because the things we did to the mystery powder happened to the baking soda that's how we figured out that it was baking soda

Science (Flight)

FLIGHT

Aim: To learn about flight and aerodynamics. 

• In your groups of 3, you will make a paper plane and measure its distance and behavior.
• In groups of 3, you will make a water rocket and record its distance and behavior. 

Definition:
The action or process of flying through the air
4 forces of flight:

1. Gravity 
2. Thrust
3.  Drag
4.  Lift 

Paper Plane:

Material:

1. one piece of Paper
2. Paper clip

3. one ruler
4. Scissor

Steps:

1. fold in half and make a line in the middle
2. unfold paper
3.  fold both corners to make a triangle
4. fold the paper forward

5. Fold the paper to the sides

6.Finish

Findings:

Plane Type	Distance	Behavior
Normal	3.8 meters	straight
Ailerons	2.8 meters	swooped
Paper clip	3.1	straight

Conclusion:
Today in science we were doing the flight and the four forces of flight are gravity, thrust, drag and left. do you know why drag races are called drag race it's because there parachute on the back of the supercars so that it holds the car back well it is driving so like drag it back? I and my partner Tobey made a plane and threw it, the first time we threw it the plane went 3.8 meters it went straight the second throw we put a paper clip on the tip of the plane and it went 3.1 meters it flew straight, the last throw we did we made flaps in the plane and it went 2.8 meters and in the air it swooped the one that flew the furthest was when we threw it the first time maybe because nothing was done to it like nothing had to be changed on the plane the definition of flight is the action or the process of the flying through the air.

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Math

Science

Aim: To see which chemical 
the mix creates the most gas.

Hypothesis: (What do I think will happen) 
what I think is going to happen is that vinegar and baking soda is going to make the balloon blow up the most because that what I think is going to happen the others won't stand a chance.

Materials:

1.  Bottle
2. Ballon 
3. Baking soda 3 tsp
4.  Salt 2 Tsp
5.  Soda water
6.  1/2 a cup Vinegar
7. Yeast 2 tsp
8. Sugar 2 Tsp
9. Warm water
10. Funnel 

Steps:

1.  Get a 3x bottle and a ballon
2.  add yeast, sugar, salt then warm water, soda.
3.  add vinegar baking soda with the funnel 
4.  wait for it to blow up
5.  watch it
6.  measure it

My images:

Findings:

I found out that my thought right I know that the one with baking soda and vinegar because I have done this before and it was really fun the smallest one was the one with 3 tsp of salt and 1/2 a cup of soda it grows really slow too so I was right and you were wrong.
YOU WERE WRONG!!!!

	Balloon 1 ( 3 tsp baking sod a, ½ cup vinegar)	Balloon 2 ( 3 tsp salt, ½ cup soda)	Balloon 3 ( 2 tsp yeast, 1 tsp sugar )
Balloon Size (cm)	14.7 cm	8.6 cm	12.8 cm
Bubbles	Small amount	small amount	Large amount

Conclusion:

Today in science we were doing an experiment about which one blows the balloon up the fastest we tried three different ways to blow the balloon up we put 2 Tsp of yeast in a bottle then we add 1 tsp of sugar to the bottle with hot water it took a while for it to blow up, it measured 12.8 cm and there was a large number of bubbles. 

And the 2nd bottle we put 3 tsp of baking soda in the balloon instead of the bottle because if we put it in the bottle with the vinegar in it because it would explode like a bomb but yeah when we did it, the balloon blows up so fast and so big it measured 14.7 cm. 

the third one was 3 tsp of salt and 1/2 of soda it was blowing up but it took a while for it to blow up to and this one was the smallest one of them all and it had a less amount of bubbles we had to put the salt in the balloon with this one too because the would shot out.

BYE!!!!