What is that white powder?

Aim: To learn about the makeup of different white powders.

1.  Cornflour

2.  Baking Soda

3.  Salt

4.  Sugar 

Materials

1.  Black piece of Card paper
2.  Cornflour
3.  Magnifying glass
4.  Baking Soda
5.  Water
6.  Londine 
7.  Vinegar

Steps

1.  Fold Card Paper into 4 squares.

2.  Each square had to be named out of Cornflour, Salt, Sugar 

      and Baking Soda.

3.   The teachers had to add a teaspoon of each of the ingredients mentioned above onto the 4 squares
4.   Then we had to investigate which powder is the same as the mystery powder by adding three drops of Vinegar, Water, and Iodine. 
5.   While we are pouring three drops into each square and observing we had to record our finding outs on the chart.
6.  After that, we had to get the mystery powder and add 3 drops of Vinegar, Water and Iodine and compare the results to our finding outs above and see which powder out of Baking soda, Salt, and Sugar is the same as the mystery powder. 

Sugar	Salt	Baking Soda	Cornflour
Appearance	White	White	White	White
Texture	Absorbs it Clumps together	Once the drops have been added it Absorbs it	Once the drops have been added it fizzes up and makes small bubbles for a limited time then it goes dry again.	Once the drops have been added it stick together and it makes beads. It clumps together and made it harder.
Smell	It has a strong smell of Vinegar and a hint of sweetness	It only has a strong smell of Vinegar.	With our investigation, it doesn't really have a smell.	With our investigation, it doesn't really have a smell.
Iodine	Appearance: White Texture: Once the drops have been added it spreads out and it looks like soy sauce. Smell: Smells like nothing.	Appearance: White Texture: It clumps together and becomes hard. Smell: It has a strong smell of Salt	Appearance: White Texture: It clumps together and becomes hard. Smell: It doesn't have a smell.	Appearance: White Texture: It soaks it up Smell: It had a very strong smell of Vinegar.
Water	Appearance: White Texture: Once the drops have been added it just soaks it up Smell: It doesn't have a smell.	Appearance: Once the drops have been added it clumps together. Smell: It has a strong smell of salt	Appearance: White Texture: Once the drops have been added it kind of fizzes but not really, and it becomes hard. Smell: The normal smell of Baking Soda	Appearance: White Texture: Once the drops have been added it clumps together and it becomes hard. Smell: Based on our investigation it doesn't have a smell.
Mystery Powder	Texture: VineguarIt fizzes when the drops were added	Texture: Water: It clumps together and it smells like salt and becomes hard.	Texture: Iodine: It clumps together and it becomes soft and it smells like Vinegar.

                                                                                                                                 I learnt how to observe different powders and how to tell the differences in things, it is also known as Forensic Science. 

Forensic Science is when you are collecting information or evidence

to help solve a case or problem. Forensic Science is mostly used when

solving a criminal case. By doing this they run D.N.A test, Footprints, and fingerprints and a heap of other stuff related to Forensic Science. 

this experiment we had to investigate, observe and match the 4 powders and find out which powder is the same as the mystery powder.

In our experiment with our group and I, we found out that the mystery powder is Baking Soda. We think it's baking Soda because once the three drops of vinegar were added it fizzed up and made some small bubbles just like it did with the Vinegar and Baking Soda that we tested before finding out.