What is that white powder?

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. powder 
2.  black paper 

3.  water
4. iodine 

5. vinegar

6. pipette 
7. 

Steps

1. put the powder on the paper 
2.  then put them is three groups
3.  then grab all the liquid you need
4.  then put the first liquid in all the salt or the other you can pick
5. then put the second liquid in all the sugar or the other you can pick
6.  then out the third liquid in all the baking soda or the other you can pick
7. then out the fourth liquid in all the cornflo or the other you can pick

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	crystal	crystal	fluffy mess	crambly
Texture	soft stons	hard	soft	soft fluffy
Smell	sweet	nothing	nothing	nothing
Iodine	spreed	went brown	went yellow	went black
Water	went clear	went clear	went clear	oobleck
Vinegar	watery	stay the same just a bit of water	fizzy	went hard

Write a paragraph about your findings.

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.  icing sugar

3.  zip lock bag

4.  tsp

5. citric acid

Steps

1.grab a zip lock bag

2. open the zip lock bag 

3. then ask a parent or a teacher to help you put the ingredient in

4.  then put the icing sugar in.

5. then put the baking soda and citric.

6. then shut the zip lock bag and mix's 

Findings:

Sherbet
Taste	weird
Colour	pink

Conclusion