This is a great activity to incorporate social studies into science. The students will be asked to explore their ancestry and find a yummy, interesting food to bring to the 'digestion' day. This project coincides with learning about the digestive system. Students will have a blast bringing in foods that represent their country of origin. They will present their food, along with some facts about that country and how that country is a part of their history. Then, students will share a sample with everyone in the class! I did not include a rubric, as this assignment doesn't need to be graded. However, you can always assign points for it, based on personal preference!