CHAPTER 2 Section 1 Measurement A Common Language

• When we measured the room in “shoes” we all got different answers.

• Countries around the world decided a universal measuring system would minimize confusion.

The International System of Units (SI) • The SI is a standard system of

It’s kind of like our money… 10 pennies make a dime. 10 dimes make

What is length? • When do you need to know length? • Length is

10 mm = 1 cm 100 cm = 1 meter 1000 mm = 1

Long Distance • You’d probably measure this is in kilometers. • 1 kilometer =

Short Distance • Length of an eyelash or thickness of a coin – Millimeters

Tools to Measure Length • Metric Ruler • Meter stick

• Mass is a measure of the amount of matter or “stuff” in

Measuring mass smaller than a kilogram • Grams – 1 gram is about 1

Measuring mass using kilograms • Bicycles, cars, people • 1 kilogram is about 1

DO NOW • When is it helpful to know how much space something takes

Volume • = the amount of space an object takes up

Volume of Liquid • Tools to measure volume of a liquid:

Volume of Liquid, cont’d - The SI unit is the Liter (L) - Also

Volume of Rectangular Solids • Volume = Length x width x height • V=Lx.

Which of these volumes would you want to measure in cm 3? Which would

In your Notebooks: • What is the definition of volume? • What are 2

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CHAPTER 2 Section 1 – Measurement : A Common Language

• When we measured the room in “shoes” we all got different answers. Why is it important to have a common system of measurement?

• Countries around the world decided a universal measuring system would minimize confusion. Scientists in France developed the metric system based on the number “ 10”.

The International System of Units (SI) • The SI is a standard system of measurement that allows scientists to compare data and communicate with each other about their results.

It’s kind of like our money… 10 pennies make a dime. 10 dimes make a dollar.

What is length? • When do you need to know length? • Length is the distance from one point to another. • The basic UNIT of length in the SI system is the meter.

10 mm = 1 cm 100 cm = 1 meter 1000 mm = 1 meter

Long Distance • You’d probably measure this is in kilometers. • 1 kilometer = 1000 meters!

Short Distance • Length of an eyelash or thickness of a coin – Millimeters – Milli = one-thousandth • Length of a finger – Centimeters – Centi = 1 one-hundredth

Tools to Measure Length • Metric Ruler • Meter stick

• Mass is a measure of the amount of matter or “stuff” in an object. • SI Unit for Mass – Kilogram (kg) • Tools to measure mass – Balance – Triple beam balance

Measuring mass smaller than a kilogram • Grams – 1 gram is about 1 paperclip • Milligrams – There are 1000 milligrams in 1 gram

Measuring mass using kilograms • Bicycles, cars, people • 1 kilogram is about 1 wooden bat

DO NOW • When is it helpful to know how much space something takes up?

Volume • = the amount of space an object takes up

Volume of Liquid • Tools to measure volume of a liquid:

Volume of Liquid, cont’d - The SI unit is the Liter (L) - Also measured in milliliters (m. L) - There are 1000 m. L in every Liter.

Volume of Rectangular Solids • Volume = Length x width x height • V=Lx. Wx. H - The SI unit is the cubic centimeter (cm 3 ) or the cubic meter (m 3)

Which of these volumes would you want to measure in cm 3? Which would you measure in m 3?

Volume of an Irregular Solid

In your Notebooks: • What is the definition of volume? • What are 2 tools to measure volume? • What is the unit of volume?