INTRODUCTION TO MATTER January 6 th & 7 th
1. Matter that consists of two or more substances mixed together but not chemically combined is called a(n) ____________________________. -Element -Compound -Pure Substance -Mixture Pretest to gauge depth of knowledge
2. The simplest type of pure substance is a(n) _________________. -Compound -Alloy -Solution -Element
3. In a solution, the ability of a substance to be dissolved is called the ____________. -Solvent -Solute -Solubility -Insoluble
For the next questions, determine whether it is a physical property or chemical property 4. When exposed to oxygen, iron will rust________ Chemical 5. Paper is flammable___________ Chemical 6. Gold is shiny____________ Physical
Matter Matter is anything that has mass and volume Things that are composed of matter… You Air Plastic Metal Wood Water
Properties of Matter Matter can have all sorts of different properties. List properties that can differ between matter. Chemistry- The study of the properties of matter and how matter can change.
Types of Matter Matter can be classified under two main types Pure substances Mixtures*We will get more into this next class period
Properties of Matter All matter has two kinds of properties Physical Chemical Physical properties are ones that can be observed without changing the substance. Chemical properties are ones that can be observed when changing the substance.
Physical Properties Physical properties are used to observe and describe matter. Physical properties include… Appearance Texture Color Odor Melting Point Boiling Point Density Solubility
Physical Properties Cont. Most physical changes can be undone very easily.
Chemical Properties When we change a substance we can see the chemical properties. Chemical Properties…(can only be observed when an object changes) Reactivity pH Oxidation Signs of chemical changes Change in texture Change in odor Change in color
Chemical Properties Cont. When matter changes chemically it is impossible or extremely difficult to reverse.