We tested four different green food dyes, including pandan powder, matcha, spinach powder, and spirulina powder. To determine ...

1. Carefully pour some milk in a dish so it just covers the bottom. 2. Gently add one or two drops of red, blue, and yellow food coloring to the same spot in the center of the milk. 3. Dip a cotton ...

Place the wet end of the swab in the center of the food coloring dot so that water can absorb into the coloring and the filter. Lay the swab down as shown. After 3-4 minutes, if it looks like the ...

The aqueous solution of food color is blue. Iodine in water is yellow, and when added to the food color the result is a green solution. When this aqueous solution is extracted with organic solvents ...