Ask a question about objects, organisms, and events in the environment. 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, such as magnifiers, provide more information than scientists obtain using only their senses.
Scientists review and ask questions about the results of other scientists' work.
Physical Science Properties of objects and materials Objects have many observable properties, including size, weight, shape, color, and the ability to react with other substances. Objects can be described by the properties of the materials from which they are made, and those properties can be used to separate or sort a group of objects or materials. The characteristics of organisms Organisms have basic needs. Each plant or animal has different structures that serve different functions. Organisms and their environments An organism's patterns of behavior are related to the nature of that organism's environment, including the kinds and numbers of other organisms present, the availability of food and resources, and the physical characteristics of the environment.