This is a project I used in my Kindergarten/First grade class as a closure to our unit on Space. It allows students to use what they know about planets, but be creative and invent their own special planet. I had kids come up with ideas like a Pizza Planet, Flower Planet, Minion (from Despicable Me) plane, etc.
It includes Common Core standards, a student Planet mini book, Project guidelines and rubric for grading the project as well as the presentation. This unit incorporates Writing, science, and Speaking and Listening standards.