This paper explained in detail the syntax of the Humanistic-Algorithmic-Heuristic Science Learning Model. It was obtained through research and development. In this model, there were seven syntaxes that science teachers ought to do in teaching science in the classroom. The seven syntaxes were: (1) describing the objectives of science learning humanistically, (2) generating the leaners’ learning motivation humanistically; (3) leading the learners to understand the science contents in humanicstic-algorithmic-heuristic; (4) giving guidances to the learners to master the science contents humanistically by thinking algorithmic-heuristic, (5) grouping the learners based on their temporary understanding humanistically, (6) evaluating the leaners’ final understanding humanistically, and (7) giving a task to the leaners in humanistic-algorithmic-heuristic suitable the science contents that the learners have learned. This science learning model can be a choicing to the science teachers in teaching science so the science is fun for the learners and leads to improve the learners’ learning outcomes.