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 black paper
- 4 white powder (Sugar, Salt, Baking soda & Corn flour)
- Magnifying glass
- Pipette
- Chemicals (Vinegar, Iodine & Water)
The four home everyday kitchen ingredients we are using today:
- Cornflour
- Baking Soda
- Salt
- 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
|
