Fizzy Colour Mixing

Materials:

• EC Liquid Watercolour – Red – 250ml – 18069

• EC Liquid Watercolour – Yellow – 250ml – 18071

• EC Liquid Watercolour – Blue – 250ml – 18075

• CleverPatch™ Exploration Light Tray – 16620

• Ultra Bright LED Light Panel – A3 – 14924

• Paint Pipettes – Pack of 12 – 10699

• Paper Cups – Pack of 20 – 11085

• Other materials required: Bi-carb soda & vinegar.

2. Sprinkle a layer of bi-carb soda into the tray (you do not have to fill it completely). Spread it as evenly as possible.

3. Use pipettes to add droplets of the liquid watercolour into the tray. Cover the colours with a thin layer of bi-carb soda so they are hidden.

4. Pour some vinegar into paper cups and ask the children to add it to the tray using pipettes. Allow them to observe what happens and then begin to discuss the chemical reaction that is happening, as well as the colours that they are seeing and what colours are being made as they fizz and mix together.

5. You can add another dimension to this activity by switching the light panel on and dimming the lights to illuminate the colours!