Learning to write well is a long process that comes through teacher modeling, instruction, practice, and feedback. Luckily, the writing process can be used to improve science learning, too. There is perhaps no better place than a science journal for students to develop informational writing skills. Daily journal prompts are one way to encourage students to write expansively about developing knowledge.Whether supporting content learning, guiding teacher instruction, or furthering the development of students' literacy or science process skills-or all of the above-nonfiction writing opportunities are an essential aspect of science learning from which teachers and students benefit in many ways. This article provides a number of writing suggestions that integrate science while helping students develop their informational writing skills.