Biology 9/11/13 Mrs. Turgeon“Success consists of going from failure to failure without

loss of enthusiasm.” – Winston Churchill

DO NOW: Get out your 3-ring Biology binder and wait quietly for instructions

Respond to the following in your notes

1. What units do you use to measure: a.) length?

b.) mass?

c.) volume?

Copy the text in your notes 3 times: Kilo-hecta-deka-base unit-deci-centi-milli You will need to memorize this! It will help you in all

future science classes!

What are Metric Conversions?

Sometimes we need to change from one

measurement to another.

This is usually done because the unit that is used is either too big or too small for that

type of measurement.

TOO BIG !!!

525,568 millimeters

Sometimes the number is too big for the unit being measured.

Too Small

0.00654 km

Sometimes the number is too small for the unit being

measured

How Do We Fix This Problem?

We can correct these problems by doing a process called Metric Conversion.

Metric Conversion: changing from one unit of measurement to another.

Biology 9/13/13 Mrs. Turgeon

“All the great things are simple, and many can be expressed in a single

word: freedom, justice, honor, duty, mercy, hope.” – Winston Churchill

DO NOW: Put everything away except for your pencil and be ready for

Our first ACT practice test! ( woo-hoo! This is fun! )

Announcement:

Our first Science Club meeting is in room 312 (Here) on Tuesday, Sept. 17 at 4:00. Put this date in your agenda book if you would like to join!

Biology 9/13/13 Mrs. Turgeon

Agenda

1. ACT practice quiz

2. Finish Volume Lab

3. Practice with the metric system

Staircase Method (copy this)Staircase Method (copy this)

Kilo-

Hecto-

Deka-

base units

Deci-

Centi-

Milli-

Base unitsg, m, L

Larger units Smaller units

Move up the stairs, decimal moves to the

Move down the stairs, decimal moves to the

Using the stair step methodUsing the stair step method

1. Find your starting step2. Count the # of steps it takes to get to the

step that you need to stop on. A. If you move to the (downstairs) the

decimal in the first measurement moves that many places to the .

B. If you move to the (upstairs) then the decimal moves to the .

3. Fill any empty places with zeros.

The Stair-step

Kilo-

Hecto-

Deka-

base units

Deci-

Centi-

Milli-

Grams, liters,meters

525568 mm = ? mMillimeters are a very small amount of distance.

You would not want to measure a large distance in a very small unit.

Kilo-

Hecto-

Deka-

base units

Deci-

Centi-

Milli-

Base unitsg, L,m

Moved 3 to the Moved 3 to the

525.568m525.568m

0.00654 km = ? m

Kilometers(km) are a fairly large unit of distance. You would not want to measure a small distance in a large unit, so we need to convert it to a smaller unit, the meter.

Kilom is 3 steps to the right

Therefore, 0.00654 km becomes 6.54 m.