Trial Run Trial Run How many inches in a foot? How many centimeters in a meter? How many grams in one kilogram? What metric unit do we use to measure volume? What metric unit do we use to measure mass? What metric unit do we use to measure length? Why is the metric system the preferred system of measurement in science?

Pick up a ¼ sheet of paper & Unit Conversion sheet 9.18.13 OPENER: Pick up a ¼ sheet of paper & Unit Conversion sheet How many inches in a foot? How many centimeters in a meter? How many grams in one kilogram? What metric unit do we use to measure volume? What metric unit do we use to measure mass? What metric unit do we use to measure length? Why is the metric system the preferred system of measurement in science?

Quick Tour: Dimensional Analysis http://www.youtube.com/watch?v=XKCZn5MLKvk

9.26.13 OPENER: Open: notebook to the measuring lab from yesterday. TODAY: 1.) Complete Measuring Lab 2.) Take measuring skills test 3.) Online textbook scavenger hunt 9.26.13 OPENER: Open: notebook to the measuring lab from yesterday. Get out: online textbook instruction sheet (blue) & online textbook scavenger hunt

9.26.13: Measuring Practice #2 Measure the length, width, & height of one table top. Record: Length: _________ Width: __________ Height: __________ Calculate the volume of your table top using the following formula: V = L x W x H

9/25/13 OPENER: Look at the picture. How many centimeters, millimeters, and meters is this Band-Aid wrapper?

You are probably also familiar with some of the metric system units You are probably also familiar with some of the metric system units.  Match these... A  2 ______ bottle of soda. A  ________ of sugar. A  ________ stick. a.  gram b.  liter c.  meter

English Units Length Area 12 inches = 1 foot 144 square inches = 1 square foot 3 feet = 1 yard 9 square feet = 1 square yard 220 yards = 1 furlong 4,840 square yards = 1 acre 8 furlongs = 1 mile 640 acres = 1 square mile 5,280 feet = 1 mile 1 square mile = 1 section 1,760 yards = 1 mile 36 sections = 1 township   Volume Capacity (Dry) 1,728 cubic in. = 1 cubic foot 437.5 grains = 1 ounce 27 cubic feet = 1 cubic yard bushel = 8 dry gallons 8 dry quarts = 1 peck Mass Capacity (Liquid) 14 pounds = 1 stone 16 fluid ounces = 1 pint 100 pounds = 1 hundredweight 4 gills = 1 pint 2 pints = 1 quart 4 quarts = 1 gallon

Metric Prefixes Base Units Length =meter Mass = gram Volume = liter

SI (System of International) Units Uses powers of 10 (10-1, 101, 102, 103,etc.) Uniform way to present and report data across the world. How is SI different than our American units? Why do scientists use this system?

Basic Units Meter (m) length Gram (g) mass Liter (l) volume

Prefixes Add to the beginning of a Basic Unit Nano (n) Micro () Milli (m) Centi (c) Deci (d) Deca (da) Hecto (h) Kilo (k) Example: cm = centimeter Example: mg = milligram

Metric System If you needed to measure length you would choose meter as your base unit Examples: -Length of a tree branch 1.5 meters -Length of a room 5 meters -Length of a ball of twine stretched out 25 meters

Length Measurements Millimeter = small objects, like a quarter Centimeter = small objects, your foot or even your height Meter = larger distances, the size of a room Kilometer = much larger distances, Vancouver to Seattle

Metric system units are base 10, so it is easy to convert Ex.   There are 10 millimeters in 1 centimeter          100 centimeters in 1 meter A mm is about as thick as a dime.   Notice there are about 10 dimes between the 6 and the 7 on this photo. The large number represent centimeters.

Don't worry about converting inches to centimeters - just measure in centimeters to start with; hence, METRIC ruler Use your metric ruler to calculate .. 1. Width of your desk  _______ cm 2. Width of your desk  ______ mm   3. Length of your index finger _____ cm 4. Length of your index finger ______mm

Volume measures the amount of space something takes up, usually a liquid. SI units for volume: -Liter -Milliliter   Beakers and Graduated cylinders used to measure volume

How to read a graduated cylinder The smallest quantity that can be measured accurately using a measuring instrument. Indicates the degree of accuracy of measurement that can be achieved by the measuring instrument. Always estimate past the last count.

CC = cubic centimeter, which is the same as a ml   Used in medicine

Mass: the amount of matter in an object       Measured in grams and kilograms            Weight measures mass + gravity

How to read a balance...

Measuring Practice Worksheet Practice reading measurements

Measuring Lab Draw data table below (Object 1) Object 2 Object 3 Volume (ml) Mass (g) Length (cm)

Measuring Quick Lab Station 1 – Volume Determine the volumes (ml) of each graduated cylinder (each is a different color). Record in data table. Station 2 – Mass Measure the mass of 5 different objects in grams using the triple beam balances. Record in data table. Station 3 – Length Choose 5 objects to measure in cm or m using a ruler or a meter stick. Measure and record in data table.

Measuring Assessment When finished with each measuring station, come see Mrs. Russell to be assessed on your measuring skills. Only 1 student at a time. You will measure the length, mass of an object, and the volume of water.

History of Measurement Video http://www.youtube.com/watch?v=dvVCNhWJvvo

Convert to base unit first! Metric Prefixes Base Units Length =meter Mass = gram Volume = liter Convert to base unit first!

Conversion Ladder Use to convert within the metric system Kilo (k) 103 Hecto (h) 102 Deca (da) 101 Deci (d) 10-1 m, g, l Centi (c) 10-2 DR (Down move right) UL (Up move left) 1 Milli (m) 10-3

C-Notes: Dimensional Analysis & Conversions 9.27.13 C-Notes: Dimensional Analysis & Conversions

Simple Conversions Convert metric to metric Convert American to Metric 1 km = 1000 m 100 mL = 0.1 L 1 g = 1000 mg Convert American to Metric 1 inch = 2.54 cm 1 lb = 454 g 1 mile = 1.61 km

Dimensional Analysis/Factor Label Method Example: Metric to Metric Conversion How many milligrams are in 5 grams? Step 1: 5 g x ___mg = ____ mg 1 g Step 2: 5 g x _1000mg = ____ mg 1 g Step 3: 5 x _1000mg = ____ mg 1 Step 4: 5000 mg Write your knowns. Write your unknowns. Find the correct conversion. Factor (cross) out the units. Solve it.

Dimensional Analysis/Factor Label Method Example: American to Metric Conversion How many kilometers are in 10 miles? Step 1: 10 mi x ___km = ____ km 1 mi Step 2: 10 mi x _1.61 km = ____ km 1 mi Step 3: 10 x _1.61 km = ____ km 1 Step 4: 16.1 km Write your knowns. Write your unknowns. Find the correct conversion. Factor (cross) out the units. Solve it.

Practice: Metric to Metric How many cm in 1m? How many centimeters are in 5.5meters?

Practice: Metric to Metric How many meters are in 1centimeter? How many m in 500cm?

Practice: Metric to Metric How many millimeters are in 1m? How many millimeters are in one kilometer?

Practice: English to English How many minutes in a day?

Practice: English to English How many hours are in 1 year?

Practice: English to English How many minutes are in 27 years? How many seconds are in in 27 years?

Practice: English to Metric If you are traveling at 60 miles per hour (mi/hr) how many kilometers per hour (km/hr) are you traveling?

Try It! Late..OPENER: Average Caloric Intake for Americans The average American eats 2,000 calories per day. How many calories does the average American eat per hour? YES!! On the left side!

Reading: Dimensional Analysis SILENT READING! Spend 5-10minutes reading the article. Yes, ACTUALLY reading As you read, write 8-10 important ideas in notebook.

Conversion Practice Station 1 – Draw Station 2 – Measure Station 3 - Math