Scratch

https://scratch.mit.edu/

Scratch is a free visual programming language developed by the MIT Media Lab.[1] Scratch is used by students, scholars, teachers, and parents to easily create animations, games, etc. It provides a stepping stone to the more advanced world of computer programming. It can also be used for a range of educational and entertainment constructionist purposes from math and science projects, including simulations and visualizations of experiments, recording lectures with animated presentations, to social sciences animated stories, and interactive art and music.