The Chemical World

often visualized using graphs or images

measurement of some aspect of nature

in a chemical reaction, matter is neither created nor destroyed

a tentative interpretation or explanation of the observations

the science that tried to understand how matter behaves & how atoms/molecules behave?

highly controlled observations designed to validate or invalidate hypotheses

all matter is composed of small, indestructible particles called molecules

1 of the 3 things that chemistry requires

Antoine Lavoisier studied the burning of substances in closed containers. What is this called?

first step in acquiring scientific method

who discovered the atomic theory

learning to analyze and interpret data is an important scientific skill?

a way of learning that emphasizes observation and experimentation

everything that we can hold or touch is made of?

statement that summarizes past observations and predicts future ones is called scientific law

experiments do NOT determine validity of laws, hypotheses or theories

summary of observed behaviors

key characteristics of the scientific method

explains causes of observed behaviors

What is composed of atoms?