Color, Texture, etc.
Iodine
Water
Vinegar
Use
100
Describe Salt
All of the crystals are cubes. Clear. Little crystals.
100
What happens when you mix iodine with salt or sugar?
Nothing
100
Is mixing water with salt a good test to do in the competition?
No. Why not?
100
What happens when you mix salt and vinegar?
Nothing
100
What 2 activities are sugar and salt both used in?
Cooking and baking
200
Describe Sugar
All of the crystals are different shapes. Clear. Lots of Little Crystals.
200
What happens when you mix baking soda with iodine?
Nothing
200
Is mixing baking soda with water a good experiment to do in competition?
No
200
What happens when you mix vinegar and baking soda?
BIG BUBBLES! :)
200
What is salt used for besides cooking?
Melting ice on roads Killing snails is not an adequate answer
300
How can you tell salt and sugar apart?
SALT: All of the crystals are cubes. SUGAR: All of the crystals are different shapes.
300
What happens when you mix Flour with Iodine?
The four turns black.
300
Mix water with flour and tell me what your observations are.
Doughy, Slimy paste is created.
300
What happens when you mix vinegar and iodine?
Nothing
300
What powder(s) is used for baking?
Sugar, Salt, Flour, Flour, Cornstarch, and Baking Soda
400
Describe Flour
Powder. Off White.
400
What happens when you mix iodine with cornstarch?
The cornstarch turns black.
400
What are you NOT allowed to do in competition?
Taste or touch the powders
400
What happens when you mix flour and vinegar?
Nothing
400
What is Plaster of Paris used for?
Making casts
500
When you see a bright white powder, what is the first thing you should check?
You should check if it is gritty. If it is gritty and bright white it is baking soda.
500
When you are in competition should you spend time mixing iodine with salt and sugar?
No
500
Mix Sugar with water and tell me how it is different from mixing flour with water.
Flour and water make a paste but sugar and water don't
500
What happens when you mix Limestone and vinegar?
Little bubbles
500
Name on thing that Limestone is used for.
Building, glass making, and cement
M
e
n
u