Vocab Week 1 arrogate banal carping eschew unwonted Mass –measurement of amount of matter present Matter –has mass & takes up space Weight –influenced by gravity Qualitative –data picked up by senses, color, smell, shape Quantitative –data that can be measured, length, mass, height, speed

Matter –Anything that takes up space & has mass –So what isn’t matter? Mass –Measurement of matter –Grams Weight –measurement of matter and gravity –lbs Why mass? Why not weight?

Systematic approach used in a study Observation –Qualitative Data Describes qualities (think 5 senses: look, smell, touch, sounds, and taste): color, odor, shape –Quantitative Data Numeric information (quantities) How much, how big, how tall Temperature, mass, volume Scientific Method

Hypothesis –Testable prediction or statement –Your tentative explanation based on what you currently know Experiment –The procedure used to test hypothesis –Must control one variable at a time Independent variable—what you change Dependent variable—value that changes in response to the independent variable change Control—standard for comparison; the normal Conclusion Scientific Method

Theory vs Law Scientific Method Theory –Describes why things happen –Hypothesis supported by many experiments Law –Describes how things happen –Facts of nature accepted as truth

Quiz Review Lab Safety Lab Equipment –Mass of water in beaker –What equipment is used for specifically Matter vs Weight Scientific Method –Qualitative vs Quantitative –Variables Quiz on Tuesday!

Vocabulary- Week 2 From Chemistry Book… dimensional Analysis base Unit derived Unit Kelvin Celsius From Agenda…. animadversion credence feckless cavort evince