Changes in Matter.

Slides:



Advertisements
Similar presentations
Physical & Chemical Changes
Advertisements

Chapter 2 The Human Organism and the Power of Energy.
Physical and Chemical Changes
(opposite of physical properties) Chemical Properties.
Physical and Chemical Changes. All matter has properties... What is a property? A property is a trait that tells you something about an object. What would.
Physical and Chemical Changes A Write On Activity.
Mass, color, volume, and weight are examples of physical properties. A physical property can be observed or measured without changing the substance. Example:
1.7 Physical & Chemical Changes Pages 28 – 30 of the text.
Physical and Chemical Changes and Properties Matter  Matter is everywhere.  Matter is anything that takes up space and has mass.  Matter can be described.
The Effects of Temperature on Physical and Chemical Changes
Physical and Chemical Changes. Objective: Chemical/Physical Change □ The learner will be able to distinguish between a physical and chemical change.
Chemical and Physical Changes Physical Changes Only changes physical properties, does not become a new substance (usually reversible). Only changes physical.
Changes in Matter. 1. Physical Change  _______________ – alters the form or appearance of matter but DOES NOT change it into a different substance 
Chemical Reactions Review
Change, Change, Change! No, No! Not this kind of change… THIS KIND OF CHANGE!
Jeopardy S, L, G Properties Phase Changes Heating Curve ChangesMisc Final Jeopardy.
Solids, Liquids, & Gases Changes of State Chapter 2 Section 2.
Physical and Chemical Changes Notes
Physical and Chemical Changes
Physical and Chemical Changes
2.5 Physical and Chemical Changes
Physical and Chemical Changes
Physical and Chemical Changes
Physical and Chemical Changes
Chemical and Physical Changes
Chemical and Physical Changes
Section 3.4—Changes in Matter
Physical and Chemical Changes
Physical and Chemical Changes
How can you identify extensive and intensive properties?
Physical and Chemical Changes
Extensive vs. Intensive
Physical and Chemical Changes
Physical & Chemical Changes
PHYSICAL CHANGE vs CHEMICAL CHANGE
Matter.
Introduction to Chemistry
The Human Organism and the Power of Energy
Physical and Chemical Changes
Review Review worksheet from Friday Foldable.
Physical and Chemical Change
Please write into notebook 
Chapter 3: Matter – Properties and Change
Physical and Chemical Changes
Chemical and Physical Changes
Evidence of a Chemical Reaction
Physical & Chemical Changes
Chemical Properties & Physical and Chemical Changes
Physical and Chemical Changes
Physical and chemical change
Chapter 11 – Lesson 3 Physical Changes
Physical and Chemical Changes
Chemical and Physical Properties
Chapter 2 Notes Chemical and Physical Properties and Changes
Physical and Chemical Properties …21
Physical and Chemical Changes
Physical and Chemical Changes
Physical and Chemical Changes
Physical and Chemical Changes
Physical and Chemical Change
Properties & Changes of Matter
Chemical Reactions 8th 5.1 Chemical Reactions.
Changes in Matter.
Chemical and Physical Changes
Physical and Chemical Changes
Physical and Chemical Properties
Physical and Chemical Changes
Physical and Chemical Changes
Changes in Matter.
Physical and Chemical Changes
Presentation transcript:

Changes in Matter

Types of Changes: Two Types of Changes Physical Change Chemical Change

Physical Change: Does not change the chemical composition or the nature of a substance Process is easily reversible Ex. Crumpling & smoothing out paper Ex. Freezing water and thawing ice Ex. Sublimation – from solid to gas (ex. dry ice (CO2) or iodine)

Key Words: Crush/Pulverize Melt Evaporation Condensation Sublimation Tells you a physical change occurred Key Words: Crush/Pulverize Melt Evaporation Condensation Sublimation Solidification Dissolve

Chemical Changes: Changes the chemical composition or make-up of the substance New substances are formed with new properties Not easily reversible (Reversible only through chemical means or reactions) Rust

Signs of Chemical Changes: Tells you a chemical change occurred Signs of Chemical Changes: Formation of a gas Formation of a precipitate Change in color Production of heat &/or light Increase or decrease in mass

Examples: Physical Change Chemical Change Sublimation Freezing Condensation Evaporation Pulverization (crush) Solidification Dissolving Chemical Change - Burning - Neutralization - Combustion Corrosion (rusting)

Ex #1: 1. Melting Butter 4. Crushing Rock 2. Rusted Car Which of the following are examples of physical changes? 1. Melting Butter 4. Crushing Rock 2. Rusted Car 5. Condensation 3. Dissolving Sugar in Tea 6. Burning Wood

Ex #2: 1. Cooking an egg 4. Freezing Rain 2. Rotting food Which of the following are examples of chemical changes? 1. Cooking an egg 4. Freezing Rain 2. Rotting food 5. Burning a candle 3. Sublimation of Dry Ice 6. Crumpling Paper

Ex #3: Chemical Change Physical Change Where did a chemical change occur? A physical change? You carry out the following steps of an experiment & record your observations. Ex #3: 1. You place a powder in a test tube 2. You heat the test tube. You notice that a colorless gas & a copper- colored liquid are produced. 3. You collect the copper-colored liquid & cool it. It becomes a solid. Chemical Change Physical Change

Activities: Physical Science Worksheet #2 Student Study Guide – Mod 1-14 - 1-16