Classification of Matter Activity and Notes

Objective Today I will be able to: Differentiate between the properties of solids liquids and gases Differentiate between elements, compounds and mixtures by completing a close reading Differentiate between a element, compound, homogeneous or heterogeneous mixture Informal assessment – monitor student interactions as they complete the practice Formal assessment – analyze student responses to the exit ticket and concept maps Common core connection Build Strong Content Knowledge Value Evidence Reason abstractly and quantitatively

Lesson Sequence • • Evaluate: Warm-up Explain: Element, compound mixture close reading • • • Explain: Classification of Matter Notes Elaborate: Element, Compound Mixture Practice Evaluate: Exit Ticket

Warm - Up The density of lead is 11.342 g/mL. What would be the volume of a 200.0 g sample of this metal?

If 30.943 g of a liquid occupy a space of 35.0 ml, what is the density of the liquid in g/cm 3 ?

Objective Today I will be able to: Differentiate between the properties of solids liquids and gases Differentiate between elements, compounds and mixtures by completing a close reading Differentiate between a element, compound, homogeneous or heterogeneous mixture

Homework Wear closed toe shoes Wednesday and Friday!

Agenda • • Warm-up Element, compound mixture close reading • • • Classification of Matter Notes Element, Compound, Mixture Practice Exit Ticket

Solid, Liquid, Gas Puzzle Complete the puzzle at your desk. We will review the answers as a class

Element, Compound, Mixtures Close Reading Use the textbooks in the classroom OR your device to complete the worksheet

Classification of Matter Notes

Classification of Matter Notes Matter Pure Substance Mixtures Elements Compounds Homogeneous Heterogeneous

Mixtures

Mixtures   Two or more substances together which are NOT chemically combined Properties - Substances keep separate identities and properties - Substances may be present in any amount - Substances can be separated by simple physical means (filtering, magnet, etc)

Mixtures  Heterogeneous - not the same throughout (trail mix, bird seed) - Particles are large enough to be seen - Mixtures separate on standing

Mixtures Homogeneous - the same throughout (salt water) - Particles are small and not easily recognized – uniform mixture of particles - Does not settle on standing

Mixtures  Solution – example of a homogeneous mixture - one substance dissolved in another (lemonade, ocean water, gold jewelry) - Particles are very small and evenly spread out - Cannot be separated by simple physical means

Pure Substances

Elements  Pure substance that cannot be broken down into simpler substances by ordinary chemical means (Iron, Copper, Tungsten)

Elements     All matter is composed of elements Have definite properties Made up of one type of atom Periodic Table organizes elements according to their properties

Compounds Two or more different elements combine in a

chemical reaction

New substances with new properties are formed Elements combine in fixed proportions - water (H 2 O) always has two hydrogen atoms and one oxygen atom

Compounds Examples of Fixed Proportions C 3 H 7 OH - Propanol - 3 carbon, 8 hydrogen, 1 oxygen (NH 4 ) 2 O – Ammonium Oxide - 2 nitrogen, 8 hydrogen, 1 oxygen

Compounds Two elements = binary compound (CO 2 ) Three elements = ternary compound (C 6 H 12 O 6 )

Element Compound Mixture Practice Complete the practice at your desk. Problems not completed in class will be completed for HW

Exit Ticket Convert the temperatures to Kelvin (K) 0 o C -15 o C 25 o C Convert the temperatures to Celsius ( o C) 236 K 325 K 271 K