ME.A. Unifying Themes: Students apply the principles of systems, models, constancy and change, and scale in science and technology.
A.2. Models: Students use models to represent objects, processes, and events from the physical setting, the living environment, and the technological world.
A.2.a. Represent the features of a real object, event, or process using models including geometric figures, number sequences, graphs, diagrams, sketches, maps, or three-dimensional figures and note ways in which those representations do (and do not) match features of the originals.
A.4. Scale: Students use mathematics to describe scale for man-made and natural things.
A.4.a. Measure things to compare sizes, speeds, times, distances, and weights.
ME.B. The Skills and Traits of Scientific Inquiry and Technological Design: Students plan, conduct, analyze data from and communicate results of in-depth scientific investigations; and they use a systematic process, tools, equipment, and a variety of materials to create a technological design and produce a solution or product to meet a specified need.
B.1. Skills and Traits of Scientific Inquiry: Students plan, conduct, analyze data from, and communicate results of investigations, including fair tests.
B.1.b. Plan and safely conduct investigations including simple experiments that involve a fair test.
B.1.c. Use simple equipment, tools, and appropriate metric units of measurement to gather data and extend the senses.
B.1.d. Use data to construct and support a reasonable explanation.
ME.C. The Scientific and Technological Enterprise: Students understand the history and nature of scientific knowledge and technology, the processes of inquiry and technological design, and the impacts science and technology have on society and the environment.
C.1. Understandings of Inquiry: Students describe how scientific investigations result in explanations that are communicated to other scientists.
C.1.a. Describe how scientists answer questions by developing explanations based on observations, evidence, and knowledge of the natural world.