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Thursday, March 28, 2019

10 ingredients and salt water



Task 2: Place your household chemicals from your first chart into a second chart that has two compounds together. An example has been made below.

Note: You will need to use the internet to find out how these compounds react together.

When a reaction occurs between compounds / elements there is always an end result in the form of a solid/liquid or gas. This always results in a new element being formed. For this process to occur, one of the results can be hot or cold.






Compounds (ingredients)
Method (what to do)
Chemical recation

1 baking soda
2 vingerg,
Half cup of baking soda
A few drop of vinegar
  1. Adding vinegar to baking soda gives you an immediate reaction.
  2. Adding baking soda to vinegar, the reaction is delayed, but then fizzes the same amount.
1.bleach

2.  Baking soda
Mix 1 to 2/3 cups baking soda, ½ cup castile soap or other quality liquid dish detergent, ½ cup water, 2 tablespoons of white
When bleach and baking soda are mixed, the cleaning properties of both are improved. ... This happens when only 1/2 cup of baking soda is added to a typical laundry load with bleach. However,bleach should definitely not be mixed with certain other common household products because toxic gases form.

1.salt
2. Lemon
  • 1 cup lemon juice.
  • 2 tablespoons salt
Because of the presence of citric acid, the lime juice & salt mixture will be slightly acidic. It will be tart (sour) and salty, to taste. ... When you mix salt with lemon juice, the salt will dissolve in lemon juice to some extent. However, no chemical reactiontakes place.


for 2 tablespoons of fresh lime or lemon juice, 1 tablespoon of sugar, 1/2 tablespoon of bleach and 1 quart of water. Mix the ingredients.








Skittles and rainbow paper experiment

Aim: To separate colours by using the process of chromatography.


Definition: A technique for separating the different parts of a mixture / solid using liquid.


Related imageRelated imageImage result for chromatography



Rainbow paper

Materials;

1. Felt pens 
2. Ruler 
3. Pencil
4. Liquid
5. Container
6. Tissue 

Process:

Step 1: rule the tissues  2cm from  the  top and 1cm from the bottom 
Step 2: With pencil
Step 3: Dot three dots with green red and black felt.
Step 4: Then fold the tissue paper on the 2 cm line.
Step 5:Then place the tissue on the side of the container.
Step 6:Pour liquid in until it touches the tip of the tissue paper.

Findings: I found out that there are different colors in black green and red. 

Reflection: That black has blue yellow and red inside it.


Skittles

Aim: To separate colours by using the process of chromatography.

Materials;

1. petrie dish
2. water 
3. skittles 
4. petrie tray 
5. jug 


Process:

Step 1: Grab petrie dish place it on a flat surface.

Step 2: Get your skittles place them in your petrie dish evenly.

Step 3:Grab your water and pour it over your skittles so its just covering them.

Step 4:Wait until the skittles have Formed together but not mixed.


Findings: The colors and how they fade into each other but they don't mix.

Tuesday, March 26, 2019

sherbet

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 zip lock bag, stir, and enjoy.

Materials:

1.  raro
2.  tartaric acid 
3.  baking soda 
4.  citric acid
5.  zip lock bag 

Findings:
It was fun to make sherbet  because when we ate it formed up in our  mouth 
Sherbet
 raspberry 
Taste
sweet  with a little bit of sourness
Colour
red 

Forensics - finger print


Forensics
Image result for forensics
http://sciencing.com/list-forensics-techniques-6392795.html

1. What is the definition of forensic science?
Relating to or denoting the application of scientific methods and techniques to the investigation of crime.

2. Name 5 different kinds of activities used in forensic sciences and find a picture for each.
  • Chemist
  • Investigator
  • Documents examiner
  • Science technician
  • Photographer


3. Name 5 jobs that would use forensics to investigate crime
  • D.N.A
  • Finger prints
  • Footprint
  • Ballistics
  • White powder test

Finger prints

Aim: To look at the different types of fingerprints.

Material:

  1. Balloon   
  2. Ink   pad
  3. Magnifying glass

  4.  
  5.  
  6.  

Steps

  1.  Get a balloon
  2.  Get a ink pad
  3. Put your thumb on the ink pad  
  4.  Place your thumb onto the ballon
  5.  Do the same with another finger (any finger)
  6.   Inflate the balloon
  7.  Then see what type of fingerprint you have


Image result for fingerprint types

Record the types of fingerprints from those in your group.

Name
Fingerprint 1 ( Thumb)
Fingerprint 2 (finger)
Taesha
Loop
Whorl
Kyla
Loop
Loop


Summary of findings:
Thumb - we both  had a loop fingerprint
finger - kyla had a loop fingerprint and I had a whorl .
Hidden fingerprints:

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

1. Lifting and Gathering fingerprints.

Equipment:
  1. Brush
  2.  White powder
  3.  Cardboard
  4.  Tape  
Method:

  1. You get a bit of cardboard
  2. Put your finger on it
  3. you get your powder and brush  
  4. You tip a bit of the white powder on
  5. Then you use your push to see your fingerprint
  6. Use sellotape and place it on the fingerprint
  7. Lift the sellotape up and then your done.

Tuesday, March 19, 2019

white powder



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

1.   cardboard 
2.  sugar 
3.  magnifier glass
4.  salt 
5.  baking soda 
6.   cornflour
7.  iodine 
8. vinegar 

Upload a photo of each powder.

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



I found it  easy to do and easy to work as a team because we all worked together. and it was a cool experment 



Sugar
Salt
Baking Soda
Cornflour
Appearance
square square squaretriangles 
Texture
roughroughsoft soft 
Smell
sweetnessno smellno smellsmell of  flour 
Iodine
absorbed no reactionfizzyabsorbed 
Water
no reactionabsorbed absorbed oobleck
Vinegar
no reactionabsorbed fizzedabsorbed 




Friday, March 8, 2019

Scones

Aim:  To look at the different ingredients in scones and their effects.

materials 

1. bowl 
2.cup 
3.baking powder
4. flour
5.milk 
6.butter
recipe


the process 

normal 
Put a cup of flour
 Put 1tsp of  baking powder
 Pour  a 1/4 cup  of milk 
   Put a 2tsp of butter 


Lemonade

Put a cup of flour 
 Put 1 tsp of  baking powder 
Pour 1/4 cup of lemonade 
Put  2tsp of butter

No Butter
Put  a cup of flour
Put a tsp baking powder
 pour a  1/4 cup of milk






   




Trail number
Colour
Taste
Height (cm)
1. normal
golden yum4.5 cm
2. add  Lemonade
kinda brown yuck 4.5 cm
3.no butter
    white   kinda yum 4 cm6