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. Paper

2.  Baking soda

3.  Iodine

4.  Vinegar

5.  Salt

6. Sugar   

7. Corn flour

8. Water

9. Magnifying glass

10. Pipette

Upload a photo of each powder.

1.  Cornflour

  2. Baking Soda

3.  Salt

4. Sugar

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	White powder	White powder	White powder	White powder
Texture	Course	Course	Medium	Fine
Smell	Nothing	Bad	Gas	Nothing
Iodine	It turned brown but stay the same	The salt turned brown but looks more crystally.	It fizzed and turned orange with dark around the orange.	I didn't actually do anything it just sits in it watery.
Water	Went runny and kinda coursey.	No reaction.	Went hard and clumpy.	Went hard and like oobleck.
Vinegar	It didn't really do anything apart from make it more clear.But also made it more course.	No reaction.	It went clumpy and fizzed	It went clumpy and kind of into oobleck.

Write a paragraph about your findings.

The sugar at first was not as Crystal like as it was when we put the vinegar in it. But when we put water in the sugar it went runny. With the iodine in it it went runny and the crystals got bigger but also colored brown.The salt didn't really have reaction to the vinegar and water but it did with the iodine some of it went black and the rest turned yellow. The corn flour with water and vinegar went like oobleck and hard.But with iodine it went runny and didn't really dissolve. With the baking powder it just fizzed with all of them.