Unit 2 Test Study Guide

In addition to the things posted below about the Atom, you need to know the four states of matter:
Solids
Liquids
Gases
and Plasma

"Uhh, Mr. Finke...what is Plasma?"

Something we haven't studied that you really at this point only need to know is the fourth type of matter. Plasma= fourth type of matter that won't get talked about again for quite some time, just know it.

The little molecules in Solids do not move around but do vibrate in place. A lot like a very well-behaved class of kindergarteners. Sitting in one place.......but still vibrating. That is why solid stuff holds its shape.

The little molecules that make up Liquids do move around and are still fairly close together. They will move around and take the shape of whatever container they are poured into.

The molecules that make up Gases are moving around very rapidly and are very far apart. They will keep spreading apart until something stops them from spreading apart.

You should be able to draw the little boxes that we sketched in class that show the movement of the molecules for each state of matter. You can read up on these three states here.

Finally, you must know that water's boiling point in degrees Celsius is 100. Water freezes at 0 degrees Celsius. As we add energy to a substance (like water), the molecules move faster and the substance heats up. As we take away energy from a substance (like water), the molecules move slower and the substance cools down.

Unit 2 On Atoms and Such

Our second unit of study for this year will focus on the atom, the smallest unit of matter that retains its unique properties.

"What? I don't understand a word you are saying, Mr. Finke!"

That's okay, you'll pick it up over time and with practice during class. Meanwhile, take some time to head over to science-class.net and check out the slideshow called "The Atom 2" for some review help. Out of all the models shown on that slideshow, you are only required to learn how to draw the BOHR model.

In order to draw a Bohr model, you really need to know the three all essential 
ATOMIC RULES!!!
Atomic # = # of Protons (P)
Atomic # = # of Electrons (E)

Atomic Mass = P + N

"Uhh, okay Mr. Finke, but I still have no idea where to get
that information."

Ah, yes. The actual information about each type of atom is found
in the Periodic Table.
Here is an example.
This link will give you all the information about each element.
We really only focus on the first 18 elements in the 6th grade.


You should also know:

How to determine what element is being represented by a Bohr
model shown to you.  IF the model shown has 6 protons it must be a
atomic model of Carbon, because only Carbon has 6 protons.  8 protons
would have to be Oxygen, etc....

You need to know that table salt is a compound made up of Sodium 
(Na) and Chlorine (Cl).
You need to know that Rust is made of Iron (Fe) and Oxygen (O).
You need to know that we cannot cut an atom of anything in half and
still have that same element, therefore an atom is the smallest unit of
an element that is still that element.