CHE- Ch 1 Intro to Chemistry

the study of matter and the changes that it undergoes

• chemistry

• applied research

• pure research

• scientific method

matter that has a definite composition; also known as a chemical

• substance

• mass

• weight

• chemistry

a measure that reflects the amount of matter

• mass

• weight

• substance

• quantitative data

a visual, verbal, and/or mathematical explanation of data collected from many experiments

• model

• control

• experiment

• qualitative data

a measure of an amount of matter and also the effect of Earth’s gravitational pull on that matter

• weight

• mass

• qualitative data

• quantitative data

a judgment based on the information obtained

• conclusion

• hypothesis

• theory

• scientific law

in an experiment, the standard that is used for comparison

• control

• dependent variable

• independent variable

• weight

in an experiment, the variable whose value depends on the independent variable

• dependent variable

• control

• independent variable

• hypothesis

a set of controlled observations that test a hypothesis

• experiment

• scientific method

• applied research

• pure research

a tentative, testable statement of prediction about what has been observed

• hypothesis

• experiment

• scientific method

• theory