The Rainbow in a Bottle activity teaches students about solutions, colours and density by making a rainbow using waters with different amounts of sugar mixed in. The rainbow in a bottle is made by the students themselves, and the different colours of the layers allow for the easy visualisation of how solutions with more sugar are more concentrated and therefore lie below less concentrated layers.

Blueprint Stats:

Cost: cost
Field: Chemistry
Prep Time: 20 minutes
Active Time: 1 hour
Level: K-3 & 4-6
Mess Factor: mess