Test Prep for Chapter 2

This test has 3 parts:  Notebook check, definitions and a lab.  Be sure that you know the definition of the words below (I included 2 definitions that are not elsewhere on this website) and be able to put the different types of matter in order by size.  In addition, be prepared to take the mass and volume of an object and use this information to find the density.  Be sure to also have your notes with you in class.

Words to be able to define!

• element
• chemical formula
• matter
• periodic table -  A way of arranging the elements in order of the number of protons each has.
• energy (and types of energy)
• atom - The smallest single particle of an element.  It is composed of electrons, neutrons and protons.
• thermal energy
• the Law of the Conservation of Mass

* The definitions for these words can be found in your notes and on this website.  I have included in italics the definitions for those that might be more difficult to find.

Be able to put these in order of size.  Which is the smallest?

• neutron
• a Hydrogen atom (#1 on the periodic table)
• electron
• one molecule of H20
• a cell