test 1: chapter 1

• what is chemistry?

  properties of matter and the changes matter undergoes
• how does chemistry relate to matter?

  matter is the substance around us
• what is science?

  the study of things around us
• what is technology in science?

  application of knowledge for practical purposes
• what is an example of technology in science?

  computer, phones, beakers
• what is philosophy in science?

  systematic way of thinking, guides the use of technology
• what is an example of philosophy in science?


  ethics
• Can you make a solid, well-thought-out argument that's based on facts, not just opinions when operating technology knowing how it was made?


  yes, its all about making logical arguments
• what is science not based on?

  opinion, popularity, or democracy
• what are examples of science?

  anything that ends with "ology"
• what are the five characteristics of science?

  reproducible, testable, tentative, predictive, explanatory
• what are the steps in the scientific method?

  hypothesis, experiment, data analysis, and conclusion
• what is hypothesis?

  predictive statement about a phenomenon of interest
• what is scientific law?

  explains "how" something occurs
• what is an example of scientific law?

  Law of gravity, law of inertia
• what is scientific theory?

  explains "why" something occurs
• what are examples of scientific theory?

  germ theory, kinetic molecular theory of gases
• what is a scientific model?

  representations of scientific ideas or concepts
• what are the limitations to scientific models?

  dimensions, size, no life, physical features
• what are examples of scientific models?

  globe and atom
• what is an experiment?

  data observation collection
• what is constants in experiments?

  doesnt change
• what is variable in experiment?

  conditions that do change
• what is control trial in experiment?

  the conditions are known or held constant
• scientific research: what is basic research?

  general aspects of phenomenon
• scientific research: what is applied research?

  explores a phenomenon with an applied focus
• how do mass and weight relate?

  they both measure matter
• how are weight and mass different?

  mass measures matter, weight measures the force of gravity
• what is physical property?

  physical characteristics of a substance not dependent on composition
• what are examples of physical property?

  color, shape, state, melting point
• what is a physical change?

  change in physical properties
• what is an example of physical change?

  freezing water, breaking up ice
• what is a chemical property?

  chemical characteristic of substance dependent on composition
• what is an example of chemical properties?

  ability to burn and react to other substances
• what are chemical changes?

  a change in chemical properties
• what are examples of chemical changes?

  iron reacting with oxygen to form rust
• what are the states of matter?


  solid, liquid, gas
• states of matter: solid?

  keeps the same shape and volume
• states of matter: liquid?

  changes shape and keeps volume
• states of matter: gas?

  changes shape and volume