In a previous blog, we gave you an experiment to show how temperature affects the circulation of water in the ocean. Here’s a very similar experiment that you can do to see how the saltiness, or salinity, of the water affects the ocean’s circulation. These are great indoor activities for less sunny days. Why not do them both together using different colour food dyes? You can tweet us photos of your experiments to @NatureAtHomeIE and we’ll retweet the best.
Download: How does the ocean circulate: salinity