classification of matter overview
DESCRIPTION
Use this presentation to complete your Power Notes on Matter.TRANSCRIPT
Today in ScienceYou will Need:1)Pencil, Colored Pencils, Highlighters or Markers2)Power Notes – Classification of Matter –Overview – 1 page 2 sides-Bookshelf
Assignment Log #2
9/13 9/20 Binder Check #1
9/13 9/14 Metric Review- end of period
9/15 9/16 Matter Power Notes 50
9/16 9/19 Physical Properties Lab 55
Binder Check #1 & Test #1• Binder check is graded for ORGANIZATION – if
you have the papers in the correct order and all are included, this is an easy assignment to get an “A” on.• The Binder is due at the beginning of the
period. While you take your test, I will grade your binders.• Test #1 – Create a ½ page of notes, front side
only and done by hand. Target Concepts listed on Learning Point
Do You Remember:1. What tool measures volume?2. If water is at 57 degrees Celcius what
state will it be in? How do you know?3. What is the metric unit for mass?4. dkL represents what unit?5. What is the abbreviation for kilogram?6. The bubble at the top of fluid in a
measurement container is called?7. What is the formula for GLUCOSE?8. What waste product do we produce
that plants need for photosynthesis?
9. Which variable remains constant in an experiment so as to keep the results fair?
10. On which axis is the dependent variable usually found on a graph?
11.What two things are required in the title of your graphs for physical science?
12.How do you form the title for a graph with an independent and dependent variable?
13.If the independent and dependent variable both change in the same direction, what type of relationship is this?
14.Which variable does the scientist chose to effect a change?
Topic: Classification of Matter – Overview
Where have you seen things organized into groups?
ALL MATTER can be divided into ________ main categories.
6
Matter is
Pure Substance
Mixture
-anything with mass and volume (takes up space)
-Matter w/a constant composition-All particles have the same properties
-Matter w/variable composition-Made from a blending of two or more substances
Element -made up of atoms w/same atomic #-each element has its own unique amount of protons
Examples:-Gold
-Silver
-Oxygen
Compound -2 or more elements chemically combined-can be broken down only by chemical means
Examples:-Water – H2O-Hydrogen Peroxide – H2O2
-Ammonia – NH3
Homogeneous Mixture -all particles are distributed evenly-often looks like one substance
Examples:-Coffee-Kool-Aid-Cake Mix-Brass
Heterogeneous Mixture
-particles are not distributed evenly-usually can see the different “ingredients”
Examples:-Pizza-Lucky Charms Cereal-Inside of Backpack
Subscripts (letters) -Indicates the physical form in which the substance is found
Examples:-(s) = solid H2O(s) = ice water
-(l) = liquid H2O(s) = liquid water
-(g) = gas = H2O(s) = water vapor
-(aq) = aqueous (in solution)Nickel in liquid solution
Subscripts (numbers) -Indicates the amount of atoms needed to build the compound.
Examples:-NaCl = Sodium Chloride– -1 sodium atom , 1 Chlorine atom-(table salt)
-N2O = Nitrous Oxide – -2 nitrogen atoms , 1 Oxygen atom-(laughing gas)
-HC2H3O2= Acetic Acid – -4 hydrogen, 2 carbon, 2 Oxygen-(main component of vinegar)
Homework1)Review Questions #1-10 – Due Tomorrow by the end of class
2)Binder Check #1 –Cover, Table of Contents, Tabs & Organize Papers – due next Tuesday
3)½ page of notes: - Test #1 on Tuesday of next week