collect observations and measurements as evidence;
record and organize data using pictures, numbers, words, symbols, and simple graphs; and
develop and use models to represent phenomena, objects, and processes or design a prototype for a solution to a problem.
Scientific and engineering practices. The student analyzes and interprets data to derive meaning, identify features and patterns, and discover relationships or correlations to develop evidence-based arguments or evaluate designs. The student is expected to:
identify basic advantages and limitations of models such as their size, properties, and materials;
analyze data by identifying significant features and patterns;
use mathematical concepts to compare two objects with common attributes; and
evaluate a design or object using criteria to determine if it works as intended.
Scientific and engineering practices. The student develops evidence-based explanations and communicates findings, conclusions, and proposed solutions. The student is expected to:
develop explanations and propose solutions supported by data and models;
communicate explanations and solutions individually and collaboratively in a variety of settings and formats; and
listen actively to others' explanations to identify important evidence and engage respectfully in scientific discussion.
Scientific and engineering practices. The student knows the contributions of scientists and recognizes the importance of scientific research and innovation for society. The student is expected to:
explain how science or an innovation can help others; and
identify scientists and engineers such as Katherine Johnson, Sally Ride, and Ernest Just and explore what different scientists and engineers do.
Recurring themes and concepts. The student uses recurring themes and concepts to make connections across disciplines. The student is expected to:
identify and use patterns to describe phenomena or design solutions;
investigate and predict cause-and-effect relationships in science;
describe the properties of objects in terms of relative size (scale) and relative quantity;
examine the parts of a whole to define or model a system;
identify forms of energy and properties of matter;
describe the relationship between structure and function of objects, organisms, and systems; and
describe how factors or conditions can cause objects, organisms, and systems to either change or stay the same.
Matter and its properties. The student knows that objects have physical properties that determine how they are described and classified. The student is expected to:
classify objects by observable physical properties, including, shape, color, and texture, and attributes such as larger and smaller and heavier and lighter;
explain and predict changes in materials caused by heating and cooling; and
demonstrate and explain that a whole object is a system made of organized parts such as a toy that can be taken apart and put back together.
Force, motion, and energy. The student knows that forces cause changes in motion and position in everyday life. The student is expected to:
explain how pushes and pulls can start, stop, or change the speed or direction of an object's motion; and