Physical & Chemical properties CANDLE Properties A. Physical Properties: Solid Opaque partly transparent partly Waxy Melting B. Chemical properties: Flammable
All things are made up of atoms. There are 92 different types of atoms, called elements.
Each element has different properties.
The properties of matter can be grouped into two categories: physical and chemical properties.
Physical and Chemical Properties Look in book pg. 80 and pg. 96 to find the definitions.
C. Physical Properties 8 The Physical Properties to memorize: Mass Volume Density Conductivity (of heat or electricity) Boiling point/melting point State of matter Solubility Magnetism (Which of these seems least like a physical property to you?)
Part A and B Go to pg. 84 and 85 A. Chart: Fill out the chart. B. Analysis: Choose one that is least familiar to you, read about it, then summarize what you read.
Other info. Physical Property Ex: Mass Conducti vity Volume Boilin g/metli ng pt State of matter Density Solub ility Magn etism Mini Picture Descriptio n Other info (Teacher notes. Wait.) Amount of matter. Similar to weight. Grams Thermal OR Electrical Liters Temp. that it boils or melts Solid Liquid Gas plasma Equation: Mass Volume Ability to dissolve Ex: Iron
Conductivity Thermal Conductors Heat can move through Ex: Metals, Glass Non-Ex: Styrofoam Electric Conductors Electricity can move through Ex: Silver, Copper, Aluminum Non-Ex: Glass
Boiling Pt/Melting Pt This is NOT burning! Not all things melt or boil!! Does wood melt? Most biotic (living or onceliving) things DO NOT melt!
Boiling Pt/Melting Pt Boiling Pt Liquid to Gas Temperature What is the boiling pt of water? Melting Pt/Freezing Pt Solid to liquid/liquid to Solid What is the melting/ freezing pt of water?
State of Matter Solid Gas Plasma Liquid Similar to gas Electrically conductive Magnetic. A sea of charged particles
Solubility Dissolvability The ability of a substance to dissolve in a liquid Why is this a physical property?
H. Crime Scene List the physical and chemical properties of object. Class will need to guess your object.
Objects for the tables Paper Candle Crayon Christmas lights Flash Light Alka-selzer packet Toy Car
What are some physical properties of salt?
Starter Comp. notebook Write the objective in your notebook: Objective: To learn the chemical and physical properties of elements on the periodic table. Today: Quiz on properties. Bring colored pencils, if you have any. Intern: Please pass back papers today.
Chemical properties... 1. Definition Can only be observed as it changes to a different type of matter. (Changes to a new molecule.) The ability to change into something new. How it reacts with others. 2. Chemical Properties to memorize: 1. Flammability 2. Rustability 3. Reacts with water 4. Reacts with acid
3. Examples of chemical properties are... Paper burns Iron (Fe) rusts CO2 doesn t burn Silver (Ag) doesn t react w/water Copper (Cu) reacts with Oxygen (tarnishes)
During a chemical change, the substance may React Rust Tarnish Corrode Explode
Lets Review Physical Properties: properties we can measure without changing the identity of the matter. Chemical Properties: a substance s ability to change into something new. It can only be observed while the change is taking place. (We use these properties to distinguish chemicals from one another)
E. Physical vs. chemical properties Wood Physical Property: Chemical Property:
E. Physical vs. chemical properties Wood Physical Property: Chemical Property:
F. PHYSICAL VS. CHEMICAL PROPERTIES Baking Soda Physical Property: white powder Chemical Property: Reacts with vinegar to produce bubbles
G. Chemical vs. physical properties Iron Physical Property: Malleable (able to be shaped) Chemical Property: Reacts with oxygen to form rust
Periodic Table Properties
ALKALI METALS (Blue) PHYSICAL PROPERTIES: Soft and silvery Metal Conduct electricity Solids (at room temperature) CHEMICAL PROPERTIES: Very reactive with water (explode) Image: http://www.learner.org/interactives/periodic/groups2.html
ALKALINE EARTH METALS (Green) PHYSICAL PROPERTIES: White and malleable Conduct electricity Solids CHEMICAL PROPERTIES: React with water
TRANSITION METALS (purple) PHYSICAL PROPERTIES: Conduct heat and electricity. Solids and 1 liquid (mercury) CHEMICAL PROPERTIES: Varies. Some bond with many others (Copper). Some don t bond with very many (Gold)
BORON, CARBON, NITROGEN, & OXYGEN FAMILIES (4 rows) PHYSICAL PROPERTIES: Solids Metals and nonmetals CHEMICAL PROPERTIES: Combine to form LIVING things.
Halogens PHYSICAL PROPERTIES: Dense Non-metals Gasses and liquid CHEMICAL PROPERTIES: Very reactive with group 1 (Alkali Metals)
Noble Gases PHYSICAL PROPERTIES: Gases Non-metals CHEMICAL PROPERTIES: Not reactive at all!
Rare Earth Metals PHYSICAL PROPERTIES: Silvery or gray metals Conduct electricity CHEMICAL PROPERTIES: Radioactive
Science Journal 1. The difference between physical and chemical properties is 2. The 8 physical properties I need to memorize are.
Science Journal 1. The difference between physical and chemical properties is that physical properties can be measured/observed without changing the identity. 2. The 8 physical properties I need to memorize are mass, volume, density, magnetism, solubility, conductivity, melting/boiling pt, state of matter