Why do you think scientists use the metric system?

Why do you think scientists use the metric system?

The Metric System

An internationally agreed upon system, based on the number 10

Officially called the SI system, built on a foundation of 7 "base units".

What it is

The Metric SystemAn internationally agreed upon system, based on the number 10

Officially called the SI system, built on a foundation of 7 "base units".

Mass - gram (g)

What it is

The 4 base units we’ll use

The Metric SystemAn internationally agreed upon system, based on the number 10

Officially called the SI system, built on a foundation of 7 "base units".

Mass - gram (g)

Volume - Liter (L)

What it is

The 4 base units we’ll use

The Metric SystemAn internationally agreed upon system, based on the number 10

Officially called the SI system, built on a foundation of 7 "base units".

Mass - gram (g)

Volume - Liter (L)

Distance - meter (m)

What it is

The 4 base units we’ll use

The Metric SystemAn internationally agreed upon system, based on the number 10

Officially called the SI system, built on a foundation of 7 "base units".

Mass - gram (g)

Volume - Liter (L)

Distance - meter (m)

Time - second (s)

What it is

The 4 base units we’ll use

The Metric SystemWe attach prefixes – a group of letters – in front of each metric unit to tell us how much bigger or smaller we want it.

prefix letter sizemega M 1,000,000kilo K 1,000hecto H 100deka dk 10“unit” - 1deci d 0.1centi c 0.01milli m 0.001micro μ 0.0001

prefixes

K H D u d c m

Metric Conversion practice1.  1000 cl = _______ L 2.  120 mm = _______ cm 3.  1200 cl = _______ L

4.  2 cm = _______ mm 5.  11000 L = _______ kl 6.  10 cl = _______ml

7.  12000 m = _______ km 8.  8 g = _______ cg 9.  80 ml = _______ cl

10.  3 L = _______ cl 11.  2000 L = _______ kl 12.  5 cm = ______ mm

13.  900 cm = _______ m 14.  11 cg = _______ μg 15.  900 m = ____ km

16.  7000 ml = _______ L 17.  5 kg = _______ g 18.  60 mm = _____ cm

19.  1 kg = _______ g 20.  4000 ml = _______ L 21.  1 cl = _______ ml

22.  1100 L = _______h L 23.  10000000 g = _____ Mg 24.  20000 μl = _____ L

25.  7000 L = _______ kl 26.  70 ml = _______ cl 27.  5 g = _______ cg

28.  9 cl = _______ ml 29.  1 g = _______ cg 30.  8 kg = _______ g