White powder

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. 1 black paper
2. 4 white powder (Sugar, Salt, Baking soda & Corn flour)
3. Magnifying glass
4. Pipette
5. Chemicals (Vinegar, Iodine & Water)

The four home everyday kitchen ingredients we are using today:

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

Type	Sugar	Salt	Baking Soda	Cornflour
Appearance	clumpy	dry	crumbly	hard
Texture	Glunk	Soft	Soft	Soft, hard and clumps
Smell	sugar	Salt	Smokey, vinegar and clawrin	Smokey and vinegar
Iodine	Wet and Soggy	Absorbed and soft	Damp	Hard
Water	Sticky and soggy	Damp	Hard	Gooy and Hard
Vinegar	Sticky	Damp	Fizzy	Hard