Investigate and describe types of forces including contact forces and forces acting at a distance, such as electrical, magnetic, and gravitational.
Explore the Law of Gravity by recognizing that every object exerts gravitational force on every other object and that the force depends on how much mass the objects have and how far apart they are.
Investigate and describe that an unbalanced force acting on an object changes its speed, or direction of motion, or both.
Measure and graph distance versus time for an object moving at a constant speed. Interpret this relationship.
Define a problem from the sixth grade curriculum, use appropriate reference materials to support scientific understanding, plan and carry out scientific investigation of various types, such as systematic observations or experiments, identify variables, collect and organize data, interpret data in charts, tables, and graphics, analyze information, make predictions, and defend conclusions.
Discuss, compare, and negotiate methods used, results obtained, and explanations among groups of students conducting the same investigation
Explain why scientific investigations should be replicable.