Chemistry
the study of matter and the changes it undergoes
Matter
anything that has mass and takes up space
Weight
how heavy something is; takes into consideration gravitational pull
Scientific Methods
Systematic approach to study science
Qualitative Data
Descriptions such as color, odor, shape or other physical characteristics
Quantitative Data
numerical descriptions such as how long or how much mass something has
Hypothesis
a tentative explanation for observations, an educated guess
Experiment
testing the hypothesis
Control
standard for comparison; measurement is kept constant to test one characteristic
Independent Variable
variable that can be changed in the experiment
Dependent Variable
variable that changes when the independent variable changes
Conclusion
judgement to create a model to explain the experimental data
Theory
explanation supported by many experiments where the outcome is predictable
Scientific Law
summary of accepted facts that is supported by many experiments