Where's The Evidence Lab?

Title of The lab: Where's The Evidence

The guiding question: What are some signs that a chemical reaction has taken place?

Your hypothesis: I think that when a chemical reaction or change in the water it starts sparkling and making some soda sounds. It might combust.

List of the Materials used:
1) Na2Co3- Sodium Carbonate
2)CaCl2- Calcium Chloride
3)HCl- Hydrochloric Acid
4)CuSO4- Copper Sulfate(acid)
5) Aluminium Foil
6)Zinc Pieces
7)Baking Soda
8)Vinegar
9)Magnesium Tablets
10)Spatula
11)Graduate Cylinders
12)Stirrer
13)Candle/matches
14)Goggles
15)Beakers/baby food jars
16)Starch
17)Iodine
18)* thermometer

Table of Analysis:

Reaction	Observations Before Reaction	Predictions	Observations During Reaction	Observations After Reaction
1)Baking Soda(Soda bicarbonate + vinegar)	It will bubble up.	It will turn white.	It bubble up and foams.	The vinegar has gas in it.
2)Copper Sulfate + Sodium Carbonate solutions	That is could bubble up and still stay blue.	It would be freezing.	It starts bubbling.	It stops a bit on the bottom and on the top.
3)Zinc piece + HCl	Liquid is clear.	Zinc could change color.	Bubble up and zinc changes color.	Fizzes the zinc and looks like its dissolving.
4)Calcium Chloride + Sodium Carbonate	Both liquids are clear.	Because both liquids are transparent it will turn white.	Turns white.	Stays the same.
5)Copper Suflate + Aluminium Foil Piece	Blue liquid and foil piece.	The aluminium foil piece will change color.	The foil changes color.	Aluminium turns black.
6)Starch + Iodine (I2)	Iodine is red (looks like blood) Starch is white powder.	It will change to a dark color.	Changes color. Gets darker and darker.	The color is darker and you see starch at the bottom.
7)Sugar + Heat	The color of the sugar would change.	It will change to caramel.	Sugar melts.	Sugar becomes brown and made caramel.