Introducing The Metric System The metric system is

Introducing…. .

The Metric System

The metric system is also known as SI: The International System of Units

The metric system is a system of measurement.

Why do scientists use the metric system?

1. It is based on the number 10.

2. It is easy to share and compare results and observations.

3. It is based on the decimal system.

Commonly Used Metric System Units, Symbols, and Tools

Quantity Unit Symbol Tool Length Meter m ruler Volume/capacity Liter L graduated cylinder/beaker Mass Gram g triple beam balance Temperature Kelvin Celsius K thermometer Time Second s o C clock

Prefix kilo hecto deca Amount 1000 10 Symbol k h da Example kilogram (kg) hectoliter (h. L) decameter (dam) ____ 1 ____ deci centi milli 0. 1 0. 001 d c m meter (m), gram (g), liter (L) decigram (dg) centimeter (cm) milliliter (m. L)

Conversion Stepping Up and Stepping Down

milli centi deci Stepping Down (divide by 10) deca hecto kilo Stepping Up (multiply by 10) Gram Liter Meter

Meters, Liters, and Grams Meters, Liters and Grams - You. Tube

Let’s Practice!

The mass of a car is about A. B. C. D. 1, 540 mg 1500 g 1, 500 kg 100 kg

C. 1, 500 kg

A drinking glass holds about liquid. A. B. C. D. 8 L 200 m. L 750 m. L 2 L

B. 200 m. L

A bucket can hold about liquid. A. B. C. D. 1 L 8 L 500 m. L 30 m. L

B. 8 L

To measure the capacity of a carton of milk, use: A. B. C. D. grams kiloliters kilograms liters

D. liters

To measure the mass of a dictionary, use: A. B. C. D. tons kilograms milliliters

B. kilograms

To measure the capacity of a pitcher of lemonade, use: A. B. C. D. tons kilograms milliliters

D. liters

To measure the mass of a quarter, use: A. B. C. D. milliliters kilograms liters

C. grams

To measure the length of a candy bar, use: A. B. C. D. grams meters centimeters inches

C. Centimeters

To measure the mass of a truck, use: A. B. C. D. kilograms liters kiloliters grams

A. kilograms

To measure the mass of a feather, use: A. B. C. D. milliliters milligrams kiloliters

B. milligrams

To measure the mass of a sheet of notebook paper, use: A. B. C. D. milliliters milligrams kiloliters

B. milligrams

To measure the mass of a tuba, use: A. B. C. D. liters kiloliters grams kilograms

D. kilograms

To measure the length of Highway 49, use: A. B. C. D. grams meters centimeters kilometers

D. kilometers

Next time we meet, we will do metric conversion. Yahoo!!!!