Educational Data Science resources for young children are limited at the moment. Data Science is actually a combination of skills—math and modeling, computer science and programming, and visualization. Data Science is also a framework for understanding the world; much like scientists use the scientific method, data scientists use this trifecta of skills to investigate problems or questions by collecting, curating and analyzing information in a structured way.
To learn data science, students study topics within each of these three bins, so finding a single source of data science materials for young students is difficult. To start your students learning data science skills, check out the STEM Resources page, and focus on the Math, Technology and Coding, and Data Science sections.