1.2 Data Collection

Students will distinguish the difference between variables and controls. Students will know how to evaluate the accuracy of the data and the reproducibility of an experiment.

Study Guide

Explain Each Concept

¨ Scientific models are representations of objects or systems. Models make difficult concepts easier to understand.

¨ Models can represent things too small to see or too large to observe directly.

¨ Models can be used to test hypotheses and illustrate theories.

Explain the relationships of the following concepts.

¨ science/technology

¨ observation/hypothesis

¨ theory/law

¨ model/theory