not very long
"how long is piece of string?" depending on the color, because there is so many different types of food coloring there is an assortments of different ways which they are made some food coloring is made of chemicals and some is made of organic substances even bugs.due to the question being so open/indirect, there 10's of different answers on the ways of which food coloring is made, green food coloring is often derived from seaweed, colors in jelly's are often chemical and hence commercially produced in a big factory.
Food coloring doesn't expire so you can keep it on the shelf FOREVER :D
mostly water, food coloring, different sugars with really long names and a hint of actual fruit juice
Yes as long as its not crunchy cause the peanuts wont be good with food coloring
overnight.
Physical, the water is still water and the food coloring is still food coloring you just mixed them together in one space. If you waited long enough the food coloring and water would settle back out so you had just water and food coloring.
Yes it can, however, it shouldn't last long.
A long list of colors
it only takes about 1 day
It depends on how much food coloring you are trying to absorb, and how big the celery is. If you have a small stick of celery and a lot of food coloring, it will most likely take about a week or so for the celery to completely absorb the food coloring. When the color of the water and the color of the celery switch places, it is fully absorbed. I will be doing this experiment myself to see how long in days, minutes, and seconds it takes, but if you have any more questions, try it!
The time it takes for a flower to change color when using food coloring in its water can vary depending on the type of flower and the amount of food coloring used. Typically, you may start to see some color change within a few hours to a day, but for more prominent color changes, it could take a few days to a week.
How many drops of food coloring you need to make brown depends on the shade you are trying to achieve. Begin by using two drops or red, two drops of yellow, and two drops of blue. You can then add one or more drops of each to achieve the shade you desire.