WHAT IS THAT WHITE POWDER???!!

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.

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.  Magnifying glass

3.  1 spoon of sugar

4.  1 spoon of salt

5.  1 spoon of baking soda

6.  1 spoon of corn flour

7. Pipette

8. Iodine

9. Vinegar

10. Water

11. Pen

Upload a photo of each powder.

1.  Cornflour

2.  Baking Soda

3.  Salt

4. Sugar

On the black cardboard using a microscope you need to record what you see. You will be given a small amount of 4 white powders on your cardboard. Look at them under your microscope and record what you see.

Do not mix the powders or taste the powders.

The pictures without the chemicals.

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	Cube crystals	Mix of crystals and powder	Thin powder	Thick chunky powder
Texture	rough	Thin, powdery, rough	soft	Thin and very soft
Smell	Sweet	none	chemical	Something sour
Iodine	absorbed	absorbed	thickened	Did not absorb
Water	absorbed	absorbed	thickened	No reaction
Vinegar	absorbed	Turned purple	fizzy	No reaction

Write a paragraph about your findings.

In our experiment we did white powder we had 4 different kinds of powder they were sugar, salt, baking soda, cornflour. We had to seperate each powder into 3 and then one kind of liquid had to be added to one part in each powder. The liquids were iodine, water, and vinegar.

Sugar:

When we felt the sugar it was rock and felt like small rocks, when we looked at the sugar with the magnifier it looked like small cube crystals. When we added Iodine the sugar absorbed it and it kind of looked like frozen coke and when we added the water it also absorbed then we added vinegar and it has the same reaction.

Salt:

When we felt the salt it was a thin powdery rough texture when we look at it it look like a mixed of powder and crystals. When we added Iodine it was  absorbing, then we added vinegar it turned into the colour purple.Then we added water and it absorbed the water.

Baking Soda:

The texture of baking soda was very soft and thin when we look at it with the magnifying glass it look like a thin powder.When we added water and it thickened kind of look like a sand in it and then we added the Iodine and it also thickened,when we added the vinegar it started to fizz.

Cornflour :

When we checked out the cornflour it was thick chunky powder and the feeling of the powder was thin and very soft then we added the Iodine it did not absorb and also the rest of water and vinegar had the reaction where it did not absorb.

Making Sherbet

Using the following recipe you need to make sherbet.

Sherbet recipe

Recipe:

1tsp of powdered drink crystals (eg refresh)

1/4 tsp citric acid

1/4 tsp tartaric acid

1/4 tsp -baking soda.

Put all ingredients into a zip lock bag, stir, and enjoy.

Materials:

1.  Raro

2.  Cup/bag

3.  Spoon

4.  Baking soda

5.  Icing sugar

6. Tare tare acid

7. Citric acid

Findings:

Sherbet
Taste	It tastes sweet and sour it also is a bit fizzy
Colour	Pink

Conclusion

It has a sweet and sour taste it is also very fizzy when you put it in you mouth it has a pink colour and tastes NEARLY like sherbet, and when you put it on your mouth it taste weird and at the end it taste really sour.