DO NOW Thu, 09/17 On your DO NOW sheet under today’s date answer all of the following: On your DO...

DO NOW Thu, 09/17DO NOW Thu, 09/17 On your DO NOW sheet under today’s date On your DO NOW sheet under today’s date

answer answer allall of the following: of the following:

1.1. Turn in your signed safety Turn in your signed safety contract!contract!

2.2. What is the abbreviation for: What is the abbreviation for: gram, gram, liter and meter?liter and meter?

3.3. What units do we measure mass What units do we measure mass in?in?

4.4. What units do we measure length What units do we measure length in?in?

RemindersReminders: : HW #2 due Fri, LAB FEE, Be on time HW #2 due Fri, LAB FEE, Be on time Notebook, binder, book! Notebook, binder, book!

Intro to Cornell Intro to Cornell NotesNotes

Arsenie/BiologyArsenie/Biology

Setting up Cornell NotesSetting up Cornell Notes

Cornell Notes from Power Cornell Notes from Power PointsPoints

Mr. ArsenieOzone and the Atmosphere

9/14/09Pg. 1

Types of Cells

Types of Cells

• Animal• Plant• Bacteria• Eukaryotic• Prokaryotic

• Animal• Plant• Bacteria• Eukaryotic• Prokaryotic

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Cornell Notes from text (I.e., Cornell Notes from text (I.e., textbook)textbook)

Mr. ArsenieOzone and the Atmosphere

9/14/09Pg. 1

Similar Structures

• evolution•Homologous structures

The Metric The Metric SystemSystemSI (System SI (System

International)International)

Metric SystemMetric System

Used by every country in the world, Used by every country in the world, except the USA.except the USA.

Always used by scientists.Always used by scientists. Also called SI, which is French stands Also called SI, which is French stands

for System International.for System International. Based on the number 10, so it’s Based on the number 10, so it’s

easy!easy!

Measuring LengthMeasuring Length Length is the Length is the

distance between distance between two points.two points.

The base unit for The base unit for length is the length is the metermeter..

Meter = mMeter = m We use rulers or We use rulers or

meter sticks to meter sticks to find the length of find the length of objects.objects.

Measuring MassMeasuring Mass Mass is the amount of Mass is the amount of

matter (stuff) that matter (stuff) that makes up an object.makes up an object.

The basic unit for mass The basic unit for mass is the is the gram.gram.

Gram = gGram = g We use scales to We use scales to

measure mass.measure mass.

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Measuring VolumeMeasuring Volume Volume is the Volume is the

amount of space amount of space contained in an contained in an object.object.

The base unit for The base unit for volume is the volume is the LiterLiter..

Liter = LLiter = L We measure We measure

volume with a volume with a graduated cylinder graduated cylinder or beakeror beaker..

Measuring TemperatureMeasuring Temperature Temperature is the Temperature is the

measure of the average measure of the average heat or heat energyheat or heat energy

The basic unit for The basic unit for temperature is the temperature is the degree degree Celcius (°C)Celcius (°C)

0°C= freezing, 100°C 0°C= freezing, 100°C boilingboiling

We use thermometers to We use thermometers to measure temperature.measure temperature.

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Let’s review our Let’s review our basic basic unitsunits!!!!!!

Length Length Meter (m)Meter (m)

MassMass Gram (g)Gram (g)

Volume Volume Liter (L)Liter (L)

TemperatureTemperature °C°C

We need more We need more accuracyaccuracy

We can’t measure We can’t measure everything with everything with just basic unitsjust basic units

We need prefixes!We need prefixes!

Metric PrefixesMetric Prefixes Common prefixes from Common prefixes from large to smalllarge to small::

kilo (k) - 1000kilo (k) - 1000centi (c )- 1/100th centi (c )- 1/100th milli (m)- 1/1000th milli (m)- 1/1000th

We can add these prefixes We can add these prefixes beforebefore any of our basic any of our basic units for length, mass or volume to make new units units for length, mass or volume to make new units that are smaller or bigger!!!that are smaller or bigger!!!

Example: killoleter (kL), kilometer (km) Example: killoleter (kL), kilometer (km) centileter (cL), centimeter (cm) centileter (cL), centimeter (cm) milliliter (mL), millimeter (mm)milliliter (mL), millimeter (mm)

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mmcm

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