METRIC SYSTEM NOTES8/21/10

What is the metric system?

A decimal system of units with powers of ten.

Example: 0.1; 1; 10; 100; 1,000 Also known as: the Système

International d'Unités (SI units)

What are the base units in the metric

system? Length/Distance = Meter Volume = Liter Mass = kilogram

What is a metric conversion?

Changing the same number to a different unit.

Ex. 100cm = 1 m changes the number from centimeters to meters.

If a swimming pool has 250,000 liters of water in it. How many

kiloliters of water does it have in it?

250,000 liters = ________________ kiloliters.

How do you convert between metric

units? Change the prefix. multiply or divide by

powers of ten.

What are the prefixes for the Metric system?

Put the metric chart in your notes section of

your binder.Length Megamete

r

Mm

Kilometer

km

Hectometer

hm

Dekameter

dam

Meter

M

Decimeter

dm

Centimeter

cm

Millimeter

mm

Micrometer

µm

Volume Megaliter

ML

Kilolieter

kL

Hectometer

hL

Dekameter

daL

Liter

L

Deciliter

dL

Centimeter

cL

Millimeter

mL

Micrometer

µL

Mass Megagram

Mg

Kilogram

kg

Hectogram

hg

Dekagram

dag

Gram

g

Decigram

dg

Centigram

cg

Milligram

mg

Microgram

µg

Example problems 1) 78.908cm= _____________ mm

3) 4.87m= ____________mm

5) 45.3497kL= _____________mL

What is a scale? A proportion used to determine the

relationship of a representation of a time frame.

How do you calculate how old the earth is, using your scale?

10 cm = 100 million years Measure the paper

Convert from meters to centimeters

Use a proportion to figure out how old the earth is.

How old is the Earth? 4.6 billion years old.

Instructions for Timeline Sheet

Complete Steps 3 and 5 on the instruction sheet.

What are Eons and Eras? Divisions of time, separated

by catastrophic or major events in history.

Timeline Instructions Measure, mark and Color Eons and Eras

first

PRE-ARCHEAN

Finishing Timelines

beginning of

the Earth

4.6 Billion

years ago

The first signs of life 3.8 BYAFirst plants (algae) 3.2 billion years

ago

First fish 51 MYA

Add Events with a STAR and DRAW /PASTE a picture of them

Group members Group member 1: task master – keeping

the group on task, overall organization Group member 2: Marking eons and eras

and coloring, then jumping in with #3 when finished

Group member 3: Marking events and beginning to draw pictures for the starred events.

Homework= Get supplies for class by Monday, get syllabus signed, summarize your notes, finish most of the timeline

What was Pangaea? The supercontinent that all continents

originated from.

What is Plate Tectonics? The study of how plates (divisions of the

crust) float or move on top of the mantle.

What is continental drift? The theory that the

continents drifted apart from one continent (Pangaea).

http://www.sciencelearn.org.nz/Contexts/Icy-Ecosystems/Sci-Media/Animations-and-Interactives/Continental-drift