The purpose of this assessment probe is to elicit students’ ideas about respiration. The probe is designed to find out whether students recognize respiration as a process that all living things use in order to obtain energy or whether they have a restricted macroscopic meaning of respiration.

The purpose of this assessment probe is to elicit students’ ideas about growth. The probe can be used to determine whether students recognize that growth occurs as a result of cell division, which increases the number of body cells.

The purpose of this assessment probe is to elicit students’ ideas about the size of cells. The probe can be used to determine whether students recognize how small a cell is relative to other things.

The purpose of this assessment probe is to elicit students’ ideas about life cycles. The probe can be used to determine whether students recognize that although life cycles vary in length and developmental stages, all multicellular organisms go through a life cycle.

The purpose of this assessment probe is to elicit students’ ideas about hypotheses. The probe is designed to find out if students understand what a hypothesis is, when it is used, and how it is developed.

The purpose of this assessment probe is to elicit students’ ideas about scientific investigations. The probe is designed to find out if students recognize that scientists investigate the natural world in a variety of ways depending on the question they pose and that there is no fixed sequence of steps called the “scientific method” that all scientists use and follow rigidly.

The purpose of this assessment probe is to elicit students’ ideas about the nature of science. The probe is designed to find out if students distinguish scientific theories from the common use of the word theory and if they understand how theories differ from laws.

The purpose of this assessment probe is to elicit students’ ideas about falling objects. The probe is designed to find out if students think the weight or mass of an object affects how fast it falls.

The purpose of this assessment probe is to elicit students’ ideas about circular motion. The probe is designed to determine whether students recognize that an object will move in a straight line unless acted upon by an outside force.

The purpose of this assessment probe is to elicit students’ ideas about forces. The probe is designed to find out whether students recognize that balanced forces act on a stationary object.