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.  cardboard
2.  pipex 
3.  water
4.  vinegar
5.  baking soda
6.   corn flour
7. sugar

saltSteps

1. fold the cardboard into four
2. put the four white powder separate into three
3. teacher come around and gave as the white powder
4. spilt it into three 
5. get Adonis,water,vinegar,
6. put the wet stuff into the on of the crones watch it.

Findings: corn flour make water vinegar lodion hard in the shape it was in the baking soda it stared to fizz and bubble up after that.

	Sugar	Salt	Baking Soda	Cornflour
Appearance	white	white	white	white
Texture	peoples	pebbles	fluffy	rubbery
Smell	none	none	none	none
Iodine	dyed it	dyed it	obviating it	stinks and hardens
Water	goes throw it	goes throw it	sit on the powder	stay on top then slink after a while
Vinegar	goes throw it	goes throw it	bubbles	goes throw then harden

Write a paragraph about your findings.