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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? DO NOW: ( 5 mins ) Using your reference table A, give the standard pressure value of the following: 1.Kilopascal _____________ 2.Atmosphere _____________ 3.Kelvin _____________ 4.Celsius ____________ QUICK WRITE: 101.3 kPa 1 atm 273 K 0 ° C
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? S.T.P.Standard Temperature Kelvin Celsius = 273 K = O °C Pressure atmosphere= 1 atm kilopascal= 101.3 kPa
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? Other S.I. Units Volume L mL Conversion factor: 1L = 1000 mL 1L__ 1 000mL 1L 1 000mL or
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? Other S.I. Units Pressure atm kPa Conversion factor: 1 atm = 101.3 kPa 1 atm__ 101.3 kPa 1atm 101.3 kPa or
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? Sample Problem:Convert 1200 L to mL Conversion factors: 1 L__ 1000 mL 1 L 1000 mLor KNOWN: 1200 mL UNKNOWN: L 1200 L = 1000 mL__ 1 L 1200000 mL
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? Sample Problem: Convert 760 kPa to atm & round off your answer to 3 S.F. Conversion factors: 1 atm__ 101.3 kPa 1atm 101.3 kPaor KNOWN: 760 kPa UNKNOWN :atm 760 kPa = 1 atm__ 101.3 kPa 7.502467917 8 atm
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? ACTIVITY CONVERT: 1.20 mL to L 2.500 kPa to atm 3.5 atm to kPa 4.450L to mL 5.276.8 kPa to atm
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TOPIC: S.I. UNIT Conversion AIM: How do we convert S.I. units of measurement ? HOMEWORK CONVERT: 1.2050 L to mL 2.300 kPa to atm 3.3 atm to kPa 4.150L to mL 5.776.8 kPa to atm
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Temperature Scales FahrenheitFahrenheit CelsiusCelsius KelvinKelvin Anders Celsius 1701-1744 Lord Kelvin (William Thomson) 1824-1907
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Temperature Scales 1 kelvin = 1 degree Celsius Notice that 1 kelvin = 1 degree Celsius Boiling point of water Freezing point of water Celsius 100 ˚C 0 ˚C 100˚C Kelvin 373 K 273 K 100 K Fahrenheit 32 ˚F 212 ˚F 180˚F
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Calculations Using Temperature Generally require temp’s in kelvinsGenerally require temp’s in kelvins T (K) = t (˚C) + 273.15T (K) = t (˚C) + 273.15 Body temp = 37 ˚C + 273 = 310 KBody temp = 37 ˚C + 273 = 310 K Liquid nitrogen = -196 ˚C + 273 = 77 KLiquid nitrogen = -196 ˚C + 273 = 77 K Generally require temp’s in kelvinsGenerally require temp’s in kelvins T (K) = t (˚C) + 273.15T (K) = t (˚C) + 273.15 Body temp = 37 ˚C + 273 = 310 KBody temp = 37 ˚C + 273 = 310 K Liquid nitrogen = -196 ˚C + 273 = 77 KLiquid nitrogen = -196 ˚C + 273 = 77 K
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Fahrenheit Formula – Honors Only 180°F = 9°F =1.8°F 100°C 5°C 1°C Zero point: 0°C = 32°F °F = 9/5 °C + 32
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Celsius Formula – Honors Only Rearrange to find T°C °F = 9/5 °C + 32 °F - 32 = 9/5 °C ( +32 - 32) °F - 32 = 9/5 °C 9/5 9/5 9/5 9/5 (°F - 32) * 5/9 = °C
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Temperature Conversions – Honors Only A person with hypothermia has a body temperature of 29.1°C. What is the body temperature in °F? °F = 9/5 (29.1°C) + 32 = 52.4 + 32 = 52.4 + 32 = 84.4°F
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Learning Check – Honors Only Pizza is baked at 455°F. What is that in °C? 1) 437 °C 2) 235°C 3) 221°C
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Learning Check – Honors Only The normal temperature of a chickadee is 105.8°F. What is that temperature in °C? The normal temperature of a chickadee is 105.8°F. What is that temperature in °C? 1) 73.8 °C 2) 58.8 °C 3) 41.0 °C
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TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ? INTENSIVE property ( QUALITATIVE) INTENSIVE property ( QUALITATIVE) –does NOT depend on quantity of matter. –e.g. temperature EXTENSIVE property ( QUANTITATIVE) EXTENSIVE property ( QUANTITATIVE) –depends on quantity of matter. –mass and volume.
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Which tool (s) would you use to measure: A. temperature B. volume C. time D. weight TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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- System International - System International – based on metric system. – uses 7 base units. – mass, SI Measurement time,length,electric current, temperature,luminous intensity, amount of substance
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1. Length the distance from one point to another point. base unit is the meter (m). tool is the metric ruler. 2.Mole amount of substance. base unit is mole (mol). 1 mol = 6.02 X 10 23 (Avogadros #) TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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3.Mass the amount of matter in a substance. base unit - kilogram (kg). tool is the balance. 4. Time how long an event takes to occur. unit is the second (s). tool is the clock (stopwatch).
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TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ? 5. Temperature the amount of kinetic energy a substance has. SI unit is the Kelvin (K). tool is the thermometer. 6. Luminous Intensity amount of light emitted from a candle unit is candela ( cd )
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TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ? 7. ELECTRIC CURRENT measure of electric current. SI unit is ampere ( A)
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MINI LESSON 2 VOCABULARY CARDS Riddle Card * Song card Cartoon/ Picture Card * Poem Card Question Card FRONT Single Frame cartoon /Drawing/ Diagram INSIDE A paragraph explaining why or how the cartoon shows or addresses the concept shown in the card TOPIC : CHEMICAL BASIS OF LIFE AIM : How do we distinguish organic & inorganic compounds? TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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CARTOON/PICTURE CARD INSIDE FRONT Temperature The picture shows a man quivering due to a high fever. TOPIC : CHEMICAL BASIS OF LIFE AIM : How do we distinguish organic & inorganic compounds? TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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RIDDLE CARD AIM: How do we construct vocabulary cards & use educational games in the classroom? INSIDE ACORN Technology Department FRONT Sometimes I fly, sometimes I crawl. You mark me, save me or waste. You measure me incessantly, with a passion for precision that borders on the obsessive. WHAT am I? TIME It measures the duration of the event. TOPIC : LIFE FUNCTIONS/ PROCESSES AIM : How do we describe life functions that keep organisms alive? TOPIC : CHEMICAL BASIS OF LIFE AIM : How do we distinguish organic & inorganic compounds? TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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QUESTION CARD AIM: How do we construct vocabulary cards & use educational games in the classroom? INSIDE ACORN Technology Department FRONT Which base unit measures the # of atoms, particles or molecules present in matter? Mole It is a base unit the measure amount of substances that cannot be measured using ordinary tools. TOPIC : LIFE FUNCTIONS/ PROCESSES AIM : How do we describe life functions that keep organisms alive? TOPIC : CHEMICAL BASIS OF LIFE AIM : How do we distinguish organic & inorganic compounds? TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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HOMEWORK Construct 2 Vocabulary Cards TOPIC : CHEMICAL BASIS OF LIFE AIM : How do we distinguish organic & inorganic compounds? TOPIC: S.I. UNITS OF MEASUREMENT AIM: How do we use S.I. units of measurement ?
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