4 Written Questions

1. Whenever the decimal point is moved to the ___, the exponent goes down by one.
2. We seek tentative explanations as to why the laws work, which are called _____.
3. In scientific notation, numbers are written as powers of 10 in the form of a.aaa x10^z. The number a.aaa is called the ____. and z is called the ____.
4. ____ refers to how reproducible your measurements are.

4 Multiple Choice Questions

1. ___ is defined as how close an experimentally determined value is the true value.
   1. accuracy
   2. theories
   3. laws
   4. right
2. Chemist often use a different way to write very large or very small numbers called _____.
   1. standard deviation
   2. scientific notation
   3. scientific method
   4. precision
3. Data is organized and analyzed. Now used to make generalizations called ____.
   1. left
   2. right
   3. laws
   4. accuracy
4. ____ is the most common method of determining the precision of a series of measurements.
   1. precision
   2. scientific method
   3. scientific notation
   4. standard deviation

3 True/False Questions

1. scientific method → Most chemical discoveries and investigations are carried out in a laboratory through a process called the ____. 1) Experiment is designed. 2) Data is gathered. 3) Data is analyzed. 4)create hypothesis. 5) hypothesis becomes theories after being continuously tested.

   True        False

2. theories → The hypotheses are continuously tested. If they hold up, the hypotheses become _____.

   True        False

3. left → Data is organized and analyzed. Now used to make generalizations called ____.

   True        False