Tools of Measurement Packet

What is the metric system? System of measurement used by scientists around the world

Scientist accomplish… Scientists can use this system to : Express observations more precisely Communicate information easily

The Metric System SI is an abbreviation for international system of units.

Who’s Using the System?

The system is based on unit of TEN. Each unit is ten times larger or smaller than the previous unit.

Who uses the metric system? Scientists around the world and the scientific community. WHY?

Metric System Units A. Meters are used to measure length and distance

Metric System Units B. Grams are used to measure the amount of matter in an object.

Metric System Units C.Degrees Celsius is used to measure temperature.

Metric System Units D. Liters are used to measure volume of liquid, or the amount of space it takes up.

You can change the prefix of a unit to increase or decrease its size. SYMBOL MEANING Kilo - k One thousand (1,000) Hecto - h One hundred (100) Deka - da Ten (10) Deci - d One tenth (1/10) Centi - c One hundredth (1/100) Milli- m One thousandth (1/1000)

You can convert between SI units like you can between dollars and dimes. Units of Length km = 1,000 m 1 m = 100 cm 1 m = 1,000 mm 1 cm = 10 mm

Comparing and Contrasting Gram Meter Liter Definition Base Unit What it Measures Example Complete Graphic Organizer With Your Group

Gram Units of Measurement Definition: Used to measure mass or amount of matter in an object Base Unit: g What is Measures? Mass Example: Weight of a pumpkin

Meter Units of Measurement Definition: Used to measure length or distance between two points Base Unit: m What is Measures? Length Example: Distance between New York and Chicago

Liter Units of Measurement Definition: Used to measure volume of a liquid or the amount of space it takes up Base Unit: L (Must be capitalized) What is Measures? Volume Example: Amount of soda

Metric system is not used in U.S. So, there will never be anything labeled in… MILES FEET INCHES FAHRENHEIT

Balance measures weight What does is measures? Balance measures weight

Graduated cylinder measures volume What does is measures? Graduated cylinder measures volume

Meter stick and rulers measures length What does is measures? Meter stick and rulers measures length

Area vs Volume Area = length x width Length is the Long side 98 cm2

Volume= length x width x height Area vs Volume Volume= length x width x height

Measuring Temperature You measure temperature in degrees Celsius You use a thermometer Find temperature by counting the marked lines

Which thermometer shows 68 degrees Celsius? Thermometer Practice Which thermometer shows 68 degrees Celsius?

Measuring Mass How to read a balance movie clip!

Measuring Mass A double pan balance has two arms so you will have two reading The top arm counts by single grams (down to tenths) The bottom arm counts by 10’s

Mass of Substance in Container Find the Combined Weight Find the mass of the Container Subtract the Container from the Combined Weight You are left with the Substance Weight

Measuring: Liquid Volume Volume is measured in Liters Measure with a graduated cylinder

Meniscus Meniscus is the curved surface in the liquid You must read it at eye level at the bottom of the meniscus

What is the volume of the liquid? Meniscus Practice What is the volume of the liquid?

Meniscus Practice 53 mL Bottom of meniscus is at 53 mL Top of the meniscus is at 54 mL 53 mL

Volume of an Object Find the Liquid Volume Put the object in and find Combined Volume Subtract the Liquid Volume from the Combined Volume You are left with Object Volume