The next step to in Scratch is to get a good understanding of how to write the code that changes Backdrops or Scenes in the program so you can tell a story, create a video game and more.
In this activity, you will watch a brief video explaining the concepts of Backdrop changing, look at my example project..... and then come up with your own coding example that has the following:
** all of these take time, trial and error, experimentation and testing to get right
Be sure to publish your final Sprite
Go to the projects page and copy the link
Turn in to Google Classroom
Here is a short video to watch explaining how to change backdrops - there are many different ways to accomplish this with code.
Below is also my sample example (just for inspiration, not to copy)