Launch: 1/4   Grab your binder and immediately take a seat!

  On the folder, write your   first name   last name   block #

  Carefully empty the contents of binder into the folder   Make sure it stays organized!

  Objective: I can describe the properties of the three states of matter

New Changes for the New Year!   Late homework policy

  Late homework in now due the day after you return   It is your responsibility to get it stamped the day after

you return, or no credit!

  Notes packets, handouts, and practice questions will can be found:   online (lpschem.wordpress.com)

  at the back of the classroom

  You are still responsible for taking notes!   Absent students will be omitted from class points

New Changes for the New Year!   Class consequences

1.  Name on board 2.  Take a break

3.  Call home 4.  Sent to Mr. Wandera

stay outside within 5 feet of the door until

called in by Mr. Heffner

Same Old, Same Old   Class rules

  PAT Time

  Big Goal!

What are the 3 states of matter?

Mr. Heffner 1/4/10

What are the 3 states of matter?   Molecules want to bounce around randomly

  But, attraction between molecules can sometimes make them stick together   inter = between

intermolecular attraction

What are the 3 states of matter?   Because of intermolecular attraction, matter can

exist in 3 different states

Solid Liquid Gas

What are the properties of gases?   Gases:

  No intermolecular attractions   Random movement

  Really fast!   Example: steam

Gas

What are the properties of liquids?   Liquids:

  Weak intermolecular attractions   Random movement

  Slow   Example: water

Liquid

What are the properties of solids?   Solids:

  Strong intermolecular attractions   Molecules stuck in ordered arrangement

  Don’t move   Example: ice

Solid

Oobleck!   Work in a group of four

  Take turns playing with the Oobleck

  As a group discuss: Is Oobleck a solid, a liquid, or a gas?

  Have recorder take out a half sheet of paper   Write names   In 3-4 sentences, answer the discussion question.

  Your answer should include and explanation of why your group came to that decision

  Be sure to get feedback from all group members

Oobleck!   Oobleck is…

  a non-Newtonian liquid

Exit Slip

1. Which of the following are states of matter?

I II III a.  I only b.  I and II c.  III only

d.  I and III

Gas Intermolecular

attraction Liquid

Exit Slip 2.  Which of the following is an example of a solid?

a.  milk b.  ice

c.  the air d.  water

Exit Slip 3.  Molecules in a solid are held together because of

a.  a strong intermolecular attraction to neighboring molecules.

b.  a weak intermolecular attraction to neighboring molecules.

c.  a weak electrostatic attraction between anions and neighboring cations.

d.  no intermolecular attraction to neighboring molecules.

Exit Slip 4.  Unlike liquids, the molecules in gases

a.  do not move randomly. b.  move randomly but have strong intermolecular

attractions. c.  are usually opaque in color. d.  move very fast and are not attracted to other

molecules.

Exit Slip 5.  In which of the following substances would the

molecules have the most amount of random movement?

a.  water

b.  ice c.  steam

d.  a chair

Homework   Finish practice questions