What is Matter? • The Matter is everything!! • Classifying Matter According to Composition • Physical and Chemical Properties & Changes
What is Matter? • Matter is any substance that has both ______________________________ • Almost everything around us is matter including air and other gases. • Examples of things that are not considered matter are _______, _______, ________.
Properties Properties are the characteristics used to identify a substance.
Examples include, color, taste, smell, dimensions, density, etc.
Types of Properties 1. ____________ Properties
2. ____________ Properties ďƒ˜ __________vs. __________Properties
Chemical & Physical Properties • Chemical Property – Describes the ability of a substance to form one or more different substances – _____________________________ – _____________________________ • Physical Property – Describes a substance – _____________________________ –_____________________________
Qualitative vs Quantitative Properties • Qualitative properties are _____________________________ – Example- The car is red.
• Quantitative properties are based on a _____________________________ – Example – It is 5°C outside.
Chemical vs Physical Change A chemical change results in _____ substance being formed. A physical change results in the ______ substance with altered physical properties. Examples Chemical
Physical
Burning wood
Sawing wood
Decomposing water
Freezing water
Nail rusting
Cleaning rust with steel wool
Chemical Change Clues 1. ___________________________ 2. A color change occurs. 3. ___________________________ 4. Heat is absorbed or given off. 5. ___________________________ Also, difficulty in reversing a change hints at a chemical change. Keep in mind these are only clues that a chemical change may have taken place. Proof still depends on a new substance being formed with new properties.