What is Science?

Core Concepts Science is a way of thinking about and understanding your surroundings Measurement is used to accurately describe properties and events An equation is a statement of a relationship between variables Science investigations include collecting observations, developing explanations, and testing explanations Scientific laws describe relationships between events that happen time after time

Measurement is used to accurately describe properties and events Measurement is a process of comparing a property to a well-defined and agreed upon referent When standards are established, the referent unit is called a Standard Unit NIST English units and Metric units International System of Units, SI

SI Length Meter (m) Mass Kilogram (kg) Time Second (s)

Width Area= L x W Units squared because of 2-D Length Volume = L x W x H Height Units cubed because of 3-D Width Length

Data Measurement information used to describe something Data can be used to describe objects, conditions, events or changes that might be occurring

Scientific Method Question raised or problem presented Data gathered Hypotheses proposed Predictions made Predictions tested hypothesis that withstands testing becomes a theory