Here is a sample rubric for a solar system 3D model project:

Criteria Excellent (4) Good (3) Fair (2) Poor (1) Accuracy The model accurately represents the size, shape, and relative distances of the planets and other celestial bodies in the solar system. The model mostly accurately represents the size, shape, and relative distances of the planets and other celestial bodies in the solar system. The model somewhat accurately represents the size, shape, and relative distances of the planets and other celestial bodies in the solar system. The model does not accurately represent the size, shape, and relative distances of the planets and other celestial bodies in the solar system. Creativity The model demonstrates a high level of creativity and originality in its design and presentation. The model demonstrates some creativity and originality in its design and presentation. The model demonstrates limited creativity and originality in its design and presentation. The model lacks creativity and originality in its design and presentation. Craftsmanship The model is well-crafted, with attention to detail and neatness in its construction. The model is mostly well-crafted, with some attention to detail and neatness in its construction. The model is somewhat well-crafted, with limited attention to detail and neatness in its construction. The model is poorly crafted, with little attention to detail and neatness in its construction. Presentation The model is presented in a clear, organized, and visually appealing manner. The model is mostly presented in a clear, organized, and visually appealing manner. The model is somewhat presented in a clear, organized, and visually appealing manner. The model is poorly presented, with little clarity, organization, or visual appeal. Knowledge The student demonstrates a deep understanding of the solar system and can explain the key features and characteristics of each celestial body. The student demonstrates a good understanding of the solar system and can explain most of the key features and characteristics of each celestial body. The student demonstrates a basic understanding of the solar system and can explain some of the key features and characteristics of each celestial body. The student demonstrates a limited understanding of the solar system and struggles to explain the key features and characteristics of each celestial body.

Note: You can adjust the criteria and scoring scale based on your specific project requirements and expectations.