ch.1 vocabulary

is a way to learning more about the natural world

an attempt to explain a pattern observed repeatedly in the natural world

a rule that describes a pattern in nature

is a collection of structures, cycle, and progress that relate to and interact with each other

the study of living system and the way in which they interact is

the study of earth system and the system in space

the study of matter and energy is

is the practice use of science

is a reasonable and educated possible answer based on what you know and what you observe

means to draw a conclusion based on what you observe

involves changing one factor and observing its effect on other while keeping all other factors constant

are factors that can be changed in an experiment

the variable that changed in an experiment is

changes as a result os a change in the independent variable

the variable that are not changed in an experiment

is any representation of an object or an event used as a tool for understanding the natural word

means combinig what you already know with the new facts that you are giving to decide if you should agree with somethimg

aa sientific investigation always contain observation often called