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 Scientists use different kinds of investigations depending on the questions they are trying to answer. Simple instruments, like rulers, provide more information than scientists obtain using only their senses.
Scientists develop explanations using observations and what they already know about the world.
Scientists make the results of their investigations public. 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, and color. These properties can be measured using tools, such as balances. 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.