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

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.  Iodine
2.  Vinegar
3.  Water
4.  Pipette
5.  Cardboard
6.  Pen


Steps

1.  Fold cardboard in 4
2.   Write in each of the boxes on the card what white powder will go there.
3.  Put all of you're whie powder on the card.
4.  Divide the 4 white powder into 3 piles.
5.  Put Iodine but only do 3 drop but just put it in one pile in each white powder.
6. Put vinegar but only do 3 drop but just put it in one pile in each white powder.

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	It changed into different colour.	Didn't do anything.	It changed into a werid colour.	It changed into colour.
Texture	It went stiff	It didn't really feel like anything just the nomarl salt.	It didn't really feel like anything just the nomarl baking soda.	Stiff and hard.
Smell	Didn't have a smell.	Didn't have a smell .	It smells werid.	Smells bad.
Iodine	Changed colour.	It turned yellow.	Changed into a colour.	It went hard and turned back.
Water	Didn't do anything.	Didn't do anything.	Didn't do anything.	It rolled off cornflour.
Vinegar	When we drop it, it started turning into a bubble.	Just made a gray stain.	Once you drop it in it blows up a bubble.	No reaction.

Write a paragraph about your findings.

Today is my forth exiperment i did today. I just realise that baking soda can dissolves into a bubble but only if you put vinegar and I think that was really cool how it turn into bubble because it was so satisfying to watch. I have two photo that meaning about this experiment. This is probably my favoutive experiment I have done seen I have been going to science. What i learnt was lodine can stain your clothes and I didn't know it was a thing. 

Hope you enjoy and i will be posting all of these kind of blog post like this.