White Powder

What is that white powder?

Today you will be a forensic chemist. 

A bag of white powder has been confiscated by 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.  Sugar
2.  Baking Soda
3.  Corn Flour
4.  Salt
5.  Water
6.  Vinger 
7. Iodine

8. pipette 
Upload a photo of each powder.

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

On the black cardboard using a magnifier glass, 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	White	White	White
Texture	Rough	Rough	Smooth	Smooth
Smell	No Smell	No Smell	No Smell	No Smell
Iodine	Changed color kinda into a burnt toffee	Changed color kinda into a burnt toffee	Rolled off the Baking soda	It just rolled off the cornflour
Water	Did nothing	DId nothing	Make it fizz	Make it into ublick
Vinegar	Nothing	Nothing	Made it fizz	Made it a lil sticky at first then dried up after a couple of seconds