This product contains a bundle of four NGSSS-Based science projects. They are intended to be done one per quarter as a science fair project, but don't have to be used that way. Each one covers one of the domains of science, and each one covers multiple standards.For the nature of science domain, the kids will be investigating which color of apple is the most sour. For life science, they will be mixing colors of paint to learn more about their senses. For earth and space science, they will be