What is that white powder?

Hurumanu - What is that 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.

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 

Materials

1.  paper 
2.  Corn flour
3.  Salt 
4.  Sugar

Findings:

Absorbed, spread, frothed, fizzed, melted, blob,

	Sugar	Salt	Baking Soda	Cornflour
Appearance (White)		White	White	Large
Grains (small, medium large)	Small	Medium	Medium	Smooth
Smell (Strong, none)	none	none	none	none
Water	Melted	changed colour	?	Bounced off
Vinegar	Melted	Changed colour/ melted	Throfed	Bounced off

Write a conclusion about your findings. ( 4 plus sentences)
Use the Hexagon activity to give you some more ideas.

The sugar......
The salt.....
The Baking Soda......
The cornflour.....