Editing Chemical Chameleon (section)

== Demonstration ==

;Preparation:
* Prepare the Potassium Permanganate (KMnO<sub>4</sub>) stock solution: In a 1000mL beaker, dissolve 0.5g of KMnO<sub>4</sub> in 500mL of water. Store in a dark bottle with a label and date on it.
* Prepare the Sodium Hydroxide (NaOH) stock solution: for every 500ml of water, dissolve 10g of NaOH in it. Store in a bottle or container with a label and date on it.
* Prepare the Sugar solution: for every 250mL of water, dissolve 6g of sugar. Store in a bottle or container with a label and date on it.

;Presentation (Stage):
# Set out the Erlenmeyer flask and the 100mL beaker. Pour 500mL of the NaOH solution and 250ml of the sugar solution into the flask, and swirl it well to get them mixed.
# Point to the clear colorless solution, and ask the audience what color you should try to make it. Gather responses from the students, and after several responses let them know that you will try to make it the following colors: Purple, Blue, Green, Yellow, and Red.
# Show the bottle with the KMnO<sub>4</sub> solution, and measure out 20mL of it with the 100mL beaker. Show that the solution you are adding is purple, and ask the audience for ideas on what will happen when you add it to the flask.
# Ask for a 3-second countdown. Swirl the flask during the countdown, and at the end pour the KMnO<sub>4</sub> solution in and stopper the flask. Watch as the solution turns blue, then green, and then yellow!
# Ask the audience if you should try adding more to the solution. If yes, repeat steps 3 and 4.
# Step 5 can be repeated multiple times. However, be aware that the solution will get darker as you add more of the KMnO<sub>4</sub> solution, and will eventually become too dark to discern a color change. If possible, try to have a light source directly underneath or behind the flask, to ensure that the colors are visible as you add more of the KMnO<sub>4</sub> solution.

;Presentation (Hands-on):
# Set out the Erlenmeyer flask and the 100mL beaker. Pour 500mL of the NaOH solution and 250ml of the sugar solution into the flask, and swirl it well to get them mixed.
# Once students start to come up, ask them what color they would like to see in the flask: red, yellow, green, blue, or purple. Measure out 20mL of the KMnO<sub>4</sub> solution and ask them what color they think it will turn the flask.
# Ask for a 3-second countdown. Swirl the flask during the countdown, and at the end pour the KMnO<sub>4</sub> solution in and stopper the flask. Watch as the solution turns blue, then green, and then yellow!
# For the remainder of the event, add only 10mL of the KMnO<sub>4</sub> solution at a time instead of 20mL. Once your solution becomes too dark to see a color change, it can be safely disposed of by pouring it down a toilet or janitor sink.