Social Studies: Trades and Services
![A cartoon girl on the beach collecting seashells.](https://wpsu.psu.edu/wp-content/uploads/2023/02/rosies-rules-trades-and-services.jpeg)
Rosie is making a seashell museum at the beach, but she needs to find a service to trade for Crystal’s purple seashell. By trying to get Crystal’s seashell Rosie learns that trading isn’t just swapping things; you can trade by doing actions, called services, too.