Employ simple equipment and tools to gather data and extend the senses. Use data to construct a reasonable explanation. Communicate investigations and explanations. Understandings about scientific inquiry Scientific investigations involve asking and answering a question and comparing the answer with what scientists already know about the world. Scientists use different kinds of investigations, depending on the questions they are trying to answer.
Simple instruments provide more information than scientists obtain using only their senses.
Scientists make the results of their investigations public. Scientists review and ask questions about the results of other scientists' work. Life Science Characteristics of organisms Organisms have basic needs. Each animal has different structures that serve different functions in growth and survival. Life cycles of organisms Many characteristics of an organism are inherited from the parents of the organism, but other characteristics result from an individual's interactions with the environment.