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Properties of Matter Targets Agenda HW Check Review Sig Figs

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Presentation on theme: "Properties of Matter Targets Agenda HW Check Review Sig Figs"— Presentation transcript:

1 Properties of Matter Targets Agenda HW Check Review Sig Figs Properties of Matter Notes Properties of Matter Mini Lab Quiz tomorrow on terms and sig figs HW: Read through gold penny lab and do pre- lab. Identify the physical or chemical properties of matter. Calculate the density of metals.

2 Significant Figures Practice.
0.085cm cm cm= .29 cm 12 g g g = 20 cm mL – 28.9 mL = 116.7 mL 282.2 km x 3.0 km = 850 km2 5.00 mm x mm = 36.6 mm2 4.23m2 / m = 0.223 m

3 Measurement versus observation
Includes a number and a unit A definite number of something Observation Information obtained by your senses Sight Smell Touch Sound Taste

4 Examples 83o F Furry Greenish-blue Mass of 2.37 grams Sweet and Sour
Measurement Furry Observation Greenish-blue Mass of 2.37 grams Sweet and Sour Weight of pounds

5 Qualitative versus Quantitative
Describes items in terms of some quality or category Color Texture Look Quantitative Capable of being measured Height Weight Mass Volume

6 Examples 83o F Furry Greenish-blue Mass of 2.37 grams Sweet and Sour
Quantitative Furry Qualitative Greenish-blue Mass of 2.37 grams Sweet and Sour Weight of pounds

7 Intensive versus Extensive Properties
A property that DOES NOT DEPEND on the amount of matter you have Boiling Point Freezing Point Density Extensive A property that DOES DEPEND on the amount of matter you have Mass Volume

8 Examples Color Temperature Mass Volume Density Concentration Intensive
Extensive Volume Density Concentration

9 Physical versus Chemical Properties
A quality or condition of a substance that can be observed or measured without changing the substance’s composition State Melting point Color Will either be intensive or extensive Chemical Ability of a substance to undergo a specific chemical change that ALWAYS changes the composition Something changes in the material

10 Examples Burning Paper Temperature increase Crushing ice Baking bread
Chemical Temperature increase Intensive Physical Crushing ice Baking bread Rusting Melting steel or ice


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