Chem 208
CHEM 208
Module 2:
List the steps of the scientific method:
Scientific Method: performing a study in organized step: (led to enunciation of Law of Conversation of Mass and Matter) 1. Performing experiments: a. An experiment is a set of steps (procedures) that are performed under controlled conditions to propose or test a hypothesis 2. Making observations a. Observations: a key factor in scientific studies as well as in everyday life, can be: i. Qualitative: Observation does not use numbers • Ex: flower is purple, bubbles are produced when lemon juice is added to baking soda ii. Quantitative: Observation is measurement. It has 2 components: • A measured quantity (numerical value) with an appropriate unit • Ex: Observed temperature (measured using a thermometer) – the measured quantity is temperature and the appropriate unit is *C 3. Prosing a hypothesis (based on the observations) a. Hypothesis: tentative explanation to account for the observations of an experiment. It is valid provided that one’s assumptions to explain the observations of an experiment can be tested 4. Confirming the hypothesis (repeated experimentation) a. The validity of the hypothesis needs to be confirmed via repeated and
Module 2:
List the steps of the scientific method:
Scientific Method: performing a study in organized step: (led to enunciation of Law of Conversation of Mass and Matter) 1. Performing experiments: a. An experiment is a set of steps (procedures) that are performed under controlled conditions to propose or test a hypothesis 2. Making observations a. Observations: a key factor in scientific studies as well as in everyday life, can be: i. Qualitative: Observation does not use numbers • Ex: flower is purple, bubbles are produced when lemon juice is added to baking soda ii. Quantitative: Observation is measurement. It has 2 components: • A measured quantity (numerical value) with an appropriate unit • Ex: Observed temperature (measured using a thermometer) – the measured quantity is temperature and the appropriate unit is *C 3. Prosing a hypothesis (based on the observations) a. Hypothesis: tentative explanation to account for the observations of an experiment. It is valid provided that one’s assumptions to explain the observations of an experiment can be tested 4. Confirming the hypothesis (repeated experimentation) a. The validity of the hypothesis needs to be confirmed via repeated and