Hurumanu - What is that white powder?

WEDNESDAY, MAY 1, 2019

Hurumanu - 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

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.  water
3.  vinagar
4.  black paper
5.  pepet
6.   
7. 

Steps

1. 
2. 
3. 
4. 
5. 
6. 

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance
Texture
Smell	nothing	nothing	nothing	nothing
Iodine
Water
Vinegar

Write a paragraph about your findings.