Making Sense of Robin Migration (Back to Lesson) National Science Education Standards r Inquiry Use data to conduct a reasonable explanation. Life Science Organisms have basic needs. They can survive only in environments in which their needs can be met. The behavior of individual organisms is influenced by internal cues (such as hunger) and by external cues (such as a change in the environment). Earth and Space Science Weather changes from day to day and over the seasons. National Geography Standards How to use maps and other geographic representations, tools, and technologies to acquire, process, and report information.   Search Journey North Copyright 1997-2012 Journey North. All Rights Reserved. Questions or comments? Contact us.