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Thursday, March 21, 2019

Sherbet

Today you will be a forensic chemist. 
A bag of white powder has been confiscated by the 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

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.  cardboard
2. sugar
3.  salt
4.  cornflower
5.  baking soda
6.   pen
7. magnifying  glass

Steps

1. Get a piece of card
2. spilt it into four groups
3.put all four ingredients on card
4. Look at with magnifying glass
5. experiment with
6. DONE!


Findings: I found that out the way you find what powder it was when put vinegar into the powder it fizzed when that fizzed up we tell it was baking soda





Sugar
Salt
Baking Soda
Cornflour
Appearance
grainsgrainsbitsbits
Texture
blockblockssoftsoft
Smell
sweetgrossdisgustingnoting
Iodine
turned brown and spearedturned brown and spreadwent solidturned purple
Water
wetwetsoggygross
Vinegar
wetwetfizzeddissolved
dissolved
Write a paragraph about your findings. when you put water in the baking soda got soggy but vinegar did different reaction vinegar fizzed up but when you sugar it would to same thing.But it was different  for cornflour for water it went gross then for vinegar it dissolved.





Making Sherbet


Once you have completed your blog and cleaned up all your equipment you can make sherbet.
Using the following recipe you can make sherbet.
Sherbet recipe

Recipe: 

1 tsp of powdered drink crystals (eg refresh)
1/4 tsp citric acid
1/2 tsp icing sugar
1/4 tsp -baking soda.
Put all ingredients into a zip lock bag, stir, and enjoy.

Materials:

1. baking soda
2.  powdered drink
3.  citric acid
4.  icing sugar 


Steps

1.Get snap bag lock the bag
2. add citric acid
3. add icing sugar 
4. add crystals
5. add baking soda
6. SHAKE!

Findings:I found that the sherbet had wired taste but fizzed in your mouth


Sherbet

Taste
weird
Colour
red

1 comment:

  1. Kia ora Saia

    This looks really great! You have worked hard on this write up. Under the chart for the white powders it asks you to write up about your findings in a paragraph. Please add this in so you can earn your science badge point!

    - Miss Birtch

    ReplyDelete

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