science

Forensic Science

Definition:

5 Forensic Science topics;

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

    

Finger prints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

1.   Balloon.
2.   Ink pad.  
3. Fingers.

Steps:

1. Put your finger on the ink pad.

2. Put your finger on the balloon.

3. Blow the balloon up with your mouth.

4. Place your finger on the powder.

5.Lift the plastic.
6. Put tape on the fingerprint on the powder.

7.  Peal it off.

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)
Aisa	Whorl
Kelesi	Loop

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?

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 prouder
3.   Brush

Method: 

1.   Put your fingerprint on the plastic.
2.   Put white powder on the plastic.
3.  Grab a brush and brush the powder off.
4.  Put tape on the plastic then take it off.
5. 
   

Results:

Lifted fingerprints

Thumb print	Index finger print

Conclusion Questions:
The kind of fingerprint have is a whorl. To improve my finger results next time is that i could probably make my fingerprint a little bit darker.  Secondly next time i do this experiment i could do my other finger and scan it.

Why did you make the pancakes so greasy and why did you add so much salt in all our

Soup because it had no taste well know it tastes like i'm eating salt do you know how to cook

Of course i know how to cook then why does my soup taste like salt i told you because it had no taste oh really so you go and a like 5 teaspoons of salt and make it not eatable you can eat it no you can't well at less it has flavour yeah salty flavour fine i can’t cook .

Home chemistry/science

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

Crystal video

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)

Borax Crystals

Borax Crystals time lapse video

Ratio; 3 Tablespoons Borax per 1/2 cup water

Materials

1) Pipe cleaners

2) String

3) Regs

4)Borax

5)Cups

Process

Step 1:Shape pipe cleaners into star shapes.

Step 2:Hang star on a peg.

Step 3:Mate up borax solution.

Step 4:Label your cup.

Step 5: Pour three spoons of borax.

Step 6: Pour half a cup of cold water into the borax cup.

Step 7: Steer the borax and the water so it can mix together.

Step 8: Pour three spoons of salt in the salt cup.

Step 9: Tip half a cup of water into the salt cup.

Step 10: Steer the water and the salt to mix them.

Step 11: Pour four spoons of sugar into the sugar cup.

Step 12: Tip half a cup of water into the sugar to mix them.

Step 13: Wet the star.

Sugar Crystals

Sugar crystals video

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

Salt crystals time lapse video

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?:

Conclusion:

________________________________________________________________________

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

Type	Explanation
Salt
Sugar
Snowflakes

kahawai

Discussion Doc

Kahawai

WALT: use what we already know to make meaning within a story.

Task

Work on this Doc together with a buddy, or in a group of 3.

When do you think this story takes place? I.e. If in the future, how many years into the future?

• Old town with a swamp 1982.

Is this the first time Āreta and Trish have taken the boat out fishing. Yes/ No

• 
  

How do you know?

• Yes because it say in the text.

What do you think the author means by regular people when he says “...back when regular people could still get petrol.”?

• Back in the old days they can still use petrol because Areta’s mum told her

In this story, what exactly does the Forest refer to?

• The forest is a grassy area with trees

Where is this story set do you think?

• In a swamp with other boaters

What are the clues that tell you this?

• They like fishing

Why is Grandma Trish so excited to find a Kahawai again. What has happened to them?

• Trish was excited because she caught a kahawai

Explain why you think this.

• Because Areta hasn't seen a kahawai be fore

Why do Trish and Āreta let the Kahawai go back into the water?

• So they could come back another time

Rubbish