the Metric System

The system is suppose to be simple and easy, but for most people it's not

It's a decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass.

Watching this next video you'll develop an understanding of how the conversions work

Here's a chart to represent prefixes, symbols, and scientific notation used in the metric system.

An Example

Track and Field

Convert miles to kilometers

A foreign exchange student is spending their senior year at a U.S. High School. The student goes out for track and is entered in the 1mile race. This student has no idea how long a mile is because there used to reading everything in kilometers. Here's how I would help this student.

This is showing English to Metric

We know The following information:

1in.= 2.54cm

12in.= 1 ft

1mile= 5280ft

100cm= 1m

1000m= 1km

Since were trying to convert miles to kilometers you would start with miles

The equation should look ilke this

I showed it this way to

show how the units

cancelled out

This is one

equation

just written

several

times

The equation

Multiply straight across

both numerator and the

denominator

You'll then get your answer

Then, divide numerator and denominator

There are five zeros so move

the decimal 5 places to the left

The student now knows how many kilometers 1 mile is

Now this foreign exchange student is

interested in throwing shot put and is

wondering how heavy it is, in other

words what is the mass. I would

tell him/her that a shot put at

High School level weighs 12 lbs.

This is how I would show the conversion

from lbs to kilograms or lbs to grams

so they would understand.

The given information

we know is this:

1 oz = 28.3 g

2.2 lbs = 1 kg

1000 g = 1 kg

This is how to

set the equation

up because

you are

converting lbs

to to Kilograms

Now, your converting

Kilograms to grams

Notice the lbs

cross out

Overall answer

Kg crosses out

leaving you with

grams (g)

Then I inform the student

on how to stay hydrated. I

explain that it's important

to drink eight 8oz (250ml)

glasses of water a day; especially

for a runner. The student needs

to know how many liters that is

so they can understand.

Information to know for Volume:

1 milliliter = .001 liter

1 centiliter = .01 liter

1 deciliter = .1 liter

1 kiloliter = 1000 liter

This is the pattern

1 liter = 1000 ml

2 liter = 2000 ml

3 liter = 3000 ml

Since you need eight 8 oz. glasses of water to stay hydrated you look on the bottle and notice that 8 ounces is equal to 250 ml. In order to figure out how many milimeters is in eight 8 oz bottles you have to multiple 250 by 8 and you get 2000 ml. Next, you have to convert mililiters to liters.

2000 ml divided by 1000ml

you get 2 and the number 2 is the amount of liters it takes to keep you hydrated.

To stay hydrated

you need eight of these

In all a total of 64 oz.

The two of

these show how

much water

is needed.

Concentration is the abundance of the constituent divided by the total volume of the mixture.

Converting Pounds to Kilograms,

then converting Kilograms to grams

Converting Milliliters to Liters

Volume is quantity of a three dimensional thing enclosed by some closed boundary; the space that a substance or a shape occupies or contains

Mass is the amount of matter in an object.

This chart

represents common metric measurements

250 ml

295.7 ml

354.9

591.5

500 ml

500 ml

1 liter

= 1000 ml

2 liters

equals 2000 ml

12 cans of soup is usually

equal to 12 lbs

In track, it's important for runners to stay hydrated

Sweating causes dehydration

and a loss of electrolytes

electrolytes are the salts

your body needs for proper functioning(sodium,chloride,

potassium).

Without proper function of electrolytes and fluids a person might experience muscle cramps, nausea, vomiting, coma, or even death.

The reasonsings for for gatorade:

*

Provide water to replace lost fluid

*

Mimic the salt concentration of the body to replace lost salt

Gatorade is isotonic meaning

a solution that has the same

salt concentration as the normal

cells of the body and the blood

When a person exercises they usually loose 900 to 1400 milligrams og sodium per liter of sweat

Gatorade is important to drink to stay

hydrated because it contains about

450 milligrams of sodium per liter

Concentration of Na(sodium)

in a 32 oz. gatorade bottle

One serving

= 240 mL (4 servings/bottle)

Total volume

= 32 fl. Oz = 960 mL = .960 L

[Na]

= 110 mg/8fl. Oz. = 110/240 mL

960 x 110mg Na = 440mg

240 mL

Na= 440 mg/.960 L

**We know the following:**

**The End**

Lincoln Middle School Students

These are your measurement notes for

your SNB