Group+63+Science+Wiki

=Group 63 Science Wiki=

Learning Objectives:

 * Differentiate between volume and mass. Define density.


 * Recognize that the measurement of volume and mass requires understanding of the sensitivity of measurement tools (e.g., rulers, graduated cylinders, balances) and knowledge and appropriate use of significant digits. Explain and give examples of how mass is conserved in a closed system.


 * Recognize that there are more than 100 elements that combine in a multitude of ways to produce compounds that make up all of the living and nonliving things that we encounter.


 * Differentiate between an atom (the smallest unit of an element that maintains the characteristics of that element) and a molecule (the smallest unit of a compound that maintains the characteristics of that compound).


 * Give basic examples of elements and compounds.


 * Differentiate between mixtures and pure substances.


 * Recognize that a substance (element or compound) has a melting point and a boiling point, both of which are independent of the amount of the sample.


 * Differentiate between physical changes and chemical changes.