Z is 3 years 6 months old
We read 2 books recently that dealt with mixing of primary colours to give secondary colours and so forth- The Color Kittens by Margaret Wise Brown and Curious George's First Day of School.
Z was so intrigued by the concept that we decided to do our own colour mixing experiment. Here's our set-up
Z thoroughly enjoyed it and was amused by the way 2 colours would mix to give another colour. This also made a great fine motor activity with all that dropper squeezing.