Thursday, September 25, 2014

Elemental Superhero! (Or Villain)

Due: Tuesday September 30, 2014

-Choose an element (everyone is has a different one)
-Come up with a cool superhero name for your element!
-Make a poster about your superhero

Include the following items on your poster

-Element name
-Super hero name
-Atomic mass
-When it was discovered
-Original names (if it was ever called anything else)
-Origin of its name
-Atomic symbol
-Atomic number
-10 properties of the element (boiling point, melting point, vapor point, reactivity with other elements…)
- The picture must include 5 qualities of the element.  For example, if you have the element sulfur, the superhero uniform uniform or skin must be yellow since sulfur has a characteristic yellow color.
-  Incorporate 3 uses that your character can do.

Examples


1. If your element has a high melting point,you might say that your superhero can move through fire to save others.

2. If your element is a gas, you might say that your villain can sneak through a crack into a room.

3.  If your element explosively reacts with water, you might say that your super hero uses water to create explosions to stop his/her enemies.

Thursday September 24, 2014

Periodic Table

-18 columns
-7 rows
-'invented' by Dmitri Mendeleev in 1869
                -He predicted properties of missing elements
                -He was mostly correct
                -It was further refined and filled out
-Each group (column) tells us about the properties
-Left to right decreases in atomic radius
-Left to right increases in electronegativity
-Left to right increases in ionization energy

Question:

1) What are some properties of metals
2) What are some properties of metalloids
3) What are some properties of nonmetals

Lewis Dot Structure

I will introduce the Lewis Dot Structure.
I will give students a paper to practice the Lewis Dot Structure

Worksheet

Wednesday, September 24, 2014

Wednesday September 24, 2014


Physical vs. Chemical Change:

-characteristics of both
-examples of both

Atomic Theory of Matter

-List the theories and explain them in your own words.

Edit your Periodic Table

-write the number of valence electrons it wants to gain or loose above the group. (the transition metals are unlabled.)
-hint: it should be +1, -1 up to and including +4, -4
-Carbon is +4, -4

Tuesday September 23, 2014


-We reviewed the states of matter

-We drew the Solid, Liquid, Gas states of matter at the atomic level.
-We talked about how the atomic level predicts how the matter will act. (solid, little atomic movement, frozen in place)

-Classification of matter

-The difference between Mixture and Solution
-Difference between Pure substance and a Mixture
-Separation of mixtures
-We did a fun lab with filtration.

Research and answer the below questions:

1) Will passing salt water through a filter cause the salt to be filtered out?
2) If you pass a mixture of water and baking soda through a filter what will happen?
3) If you pass a mixture of corn starch and water through a filter what will happen?
4) if you pass a mixture of 'dirt' and water through a filter what will happen?
5) If you pass colored water through a filter what will happen?

define:

1) homogeneous
2) heterogeneous

Research-

1) some people think that there is plenty of fresh water on Earth because we can just filter the salt from salt water. Is that true?

Monday September 22, 2014-


Define:

       -Accuracy
       -Precision

We did a fun lab with vinegar and baking soda to reinforce the Scientific Method

Welcome to Chemistry!


This blog will enable you to stay caught up on work and see what we are doing in class. This is not a substitute for class, however it will enable you to stay up to date.

You know how to contact me, and I answer emails within a few hours. Come see me or email me if you are having problems. We will find a solution and I will help you learn

Gretchen