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Metric System. Mr. Martin. What is the metric system?. A standard system used by scientists to measure Length, Volume, Mass, Density, & Temperature Based on units of 10 A.K.A. International System of Units or SI. Does this make sense to you?. What is ______?
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Metric System Mr. Martin
What is the metric system? A standard system used by scientists to measure Length, Volume, Mass, Density, & Temperature Based on units of 10 A.K.A. International System of Units or SI
What is ______? What is ______? What is ______? The amount of matter in an object The amount of space an object takes up The amount of matter in a given volume of an object Jeopardy mass volume density
What is matter? Anything that has mass & takes up space Examples: Solid, Liquids, & Gases
Anyone want to work for me this weekend What are units? • Words used to describe numbers • Example: • meters, liters, grams, %, $…
Meter (m) Metric ruler Metric ruler or graduated cylinder Liter, cm3 = mL Triple-beam balance Grams (g) Tools for mass & volume g/ml or g/cm3 thermometer ºC or K
Date: 9/19/2006 Tuesday Aim: Lab: How can we use the metric ruler to determine the length of an object? Do Now: 1. Take out homework. 2. Put your name & period on the lab Homework: Handout (Section 1-4) BRING IN A CALCULATOR TOMORROW!!!
Date: 9/20/2006 Wednesday Aim: How do we find the volume of a fluid & rectangular object? Do Now: 1. Take out homework. 2. What does the word “volume” mean? Homework: Complete Handouts: Lab Activity: Finding the Volume & Measuring Liquid Volume
The amount of space an object takes up Graduated Cylinder mL
Metric ruler Length x Width x Height (L x W x H) cc cm3 cm m3 1 1
Volume Displacement • Add at least 20 mL of water to graduated cylinder. • Place the object in the water. • Note where the water level rises & then subtract: Final Water Level - Initial Water Level = Volume of the Object
5 mL 50 mL 55 mL
Length Metric Ruler Liter Volume Gram Triple-beam balance ºC Temperature Mass = The amount of matter in an object Weight = The gravitational pull on the mass of an object
The amount of matter in a given object Triple-beam balance Grams (g) mg
The gravitational pull on the mass of an object Spring Scale Newtons Pounds
mass gravity
The amount of matter in a given volume of an object (how tightly packed together the particles are) Least Greatest D = M/V M V = M/D or M= D(V) D V Graduated Cylinder Triple-beam balance Metric Ruler
g/mL g/cm3 D = M/V D = 150g/V (V = 1 x 5 x 2) D = 150g/10cm3 D = 15g/cm3
D = M/V 3.2 g/mL D = 80.0g/V V = 65.0-40.0 = 25.0 mL D = 80g/25 mL
44 g 8 cm3 V = M/D V = 44g / 5.5 g/cm3 V = L x W x H 8 cc = L x W x H 8 cc = 2 x 2 x 2
What do we know about density & water? Density of water = 1.0g/mL Anything less than 1.0g/mL FLOATS Anything greater than 1.0g/mL SINKS Density of Ice = 0.9 g/mL (Floats)
Match the Following Densities to the Picture: A. 1.0 g/cm3 B. 2.0 g/cm3 C. 0.7 g/cm3 D E C D. 0.2 g/cm3 A E. 0.5 g/cm3 B
Date: 10/24/2006 Tuesday Aim: How can we determine the density of an object? Do Now: 1. Take out homework. Homework: Density Review Sheet. BRING IN A CALCULATOR & PENCIL EVERYDAY!!!
Date: 10/25/2006 Wednesday Aim: Lab: How can we determine the density of a fluid? Do Now: 1. Take out homework. 2. Read over lab. Homework: Complete Lab & Work on review sheet BRING IN A CALCULATOR & PENCIL EVERYDAY!!!
Date: 9/29/2006 Friday Aim: 1. Take Quiz 2. How can we convert from one metric unit to another? (Handout: Metric Practice) Do Now: Prepare for Quiz. Homework: Study for Tuesday’s Quiz on Metric Conversions & Wednesday’s Exam on the Scientific Method & Metrics System Have a Good Weekend!!!
Mouths Lips Gums K I D S H A V E D I R T Y D R I N K I N G C H O C O L A T E M I L K
1000 1/10 100 1/100 10 1/1000 K H D M d C M L G 786 ml = ______ cm3 786
Date: 10/26/2006 Thursday Aim: How can we determine the density of an object? Do Now: Take out lab. Homework: Finish review sheet.
Date: 10/27/2006 Wednesday Aim: Review: Jeopardy, of the unit test Do Now: Open your notebooks to a blank sheet of paper. Homework: Study for the exam on the Scientific Method & Metrics System. BRING IN A CALCULATOR & PENCIL
Date: 10/5/2006 Thursday Aim: Exam: What do you know about the Scientific Method & Metrics System? Do Now: Take out Calculator & #2 Pencil & Prepare for exam. Homework: Graphing Handout
Date: 10/23/2006 Monday Aim: 1. How can we determine the density of an object? Do Now: 1. Take word Search. Homework: 1. In text read pgs.18-21, answer question #2 on pg 21. 2. Have quiz signed, and corrections BRING IN A CALCULATOR & PENCIL EVERYDAY!!!
Date: 9/21/2006 Thursday Aim: How can we determine the volume of an irregularly shaped object? Do Now: 1. Take out & go over homework. 2. What is the volume of the following objects: Homework: Study for quiz (BRING CALCULATOR) A. B. 2 cm 2 cm cube 5cm 3cm
Date: 9/22/2006 Friday Aim: 1. Take Quiz 2. How can we determine the mass & weight of an object? Do Now: 1. Prepare for Quiz. Homework: Have a Good Weekend!!!