What Is 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

Materials

1.  Corn flour
2.  Baking Soda
3.  Salt
4.  Water
5.  Sugar 
6.  Vinegar
7. Lodine

Upload a photo of each powder.

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

On the black cardboard using a microscope you need to record what you see. You will be given a small amount of 4 white powders on your cardboard. Look at them under your microscope and record what you see.
Do not mix the powders or taste the powders.

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	white powder	white powder	white powder	white powder
Texture	rough	rough	smooth	hard
Smell	sweet	salty	fizzy	thick
Iodine	Black	Gold	Little brown hard dots	foamed
Water	Black	no effect	fizzed	Went hard
Vinegar	Black	no effect	fizzed	Went hard and with black

Write a paragraph about your findings.

Upload a photo of each powder.

 
 


On the black cardboard using a microscope you need to record what you see. You will be given a small amount of 4 white powders on your cardboard. Look at them under your microscope and record what you see. 
Do not mix the powders or taste the powders.

Making Sherbet

Using the following recipe you need to make sherbet.

Sherbet recipe

Recipe: 

1 tsp 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.little bag  

2.Sugar

3.Baking Soda

4.Cornflour

5.Vinegar

Findings:

Sherbet	First Whaea Jo put in the bag was 1/4 tsp taraic acid. Then we went over to Mr Pamler and Mr Pamler put in was sugar and cornflourand I think so vinegar to.
Taste	When I tasted it was so sweet is was pink and you could see so withe to.