This communication might be spoken or drawn as well as written. Understandings About Scientific Inquiry 4ASI2.1 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. 4ASI2.3 Simple instruments such as magnifiers, thermometers, rulers, provide more information than scientists obtain using only their senses. Good explanations are based on evidence from investigations.
Scientists review and ask questions about the results of other scientists' work.
4BPS1.1 Objects have many observable properties, including size, weight, shape, color, temperature, and the ability to react with other substances. Those properties can be measured using tools, such as rulers, balances and thermometers. 4BPS1.2 Objects are made of one or more materials, such as paper, wood and metal. 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. Some common materials, such as water, can be changed from one state to another by heating or cooling.