**PART A - BASIC UNITS AND PREFIXES IN THE METRIC SYSTEM**Metric system: based on decimals (base-10 positional notation). Why metric?

Table 1.1-1 Metric

**basic**units (meter=m, gram=g, liter=l); abbreviations (k, h, da, d, c, m, µ, n).`p. 2`

**Note:**1 ml = 1 cc (cubic cm; volume is the space occupied by a substance in 3 dimensions, equivalent to length x width x height).Table 1.1-2 Metric prefixes: Definitions and conversion table. (kilo ... nano)

`p. 3`**PART B - CONVERTING UNITS WITHIN THE METRIC SYSTEM**To convert from small unit (gram) to large unit (kilogram), move the decimal to the LEFT:

1.0g = 0.001 kg.Example conversions:

`p. 4`- small unit -> large unit: move decimal to LEFT

72.19 mm = .07219 m - large unit -> small unit: move decimal to RIGHT

2.945 dag = 29,450 mg

- small unit -> large unit: move decimal to LEFT
**PART C - MEASUREMENT**- Section 1 - Length
`p. 5`

Measure microscope slide, student height.

Record on board and write class data on`p. 23`. Data will be used for Graphing lab. - Section 2 - Mass
`p. 6`

Measure coin, keys. (Use electronic scales if no triple beam balance) - Section 3 - Volume
`p. 7`

Note volume can be thought as length in 3 dimensions (lengh * height * width); 1ml = 1cc (cubic cm). Measure volume of marble with 50 ml graduated cylinder.

Measure volume of drinking glass (~80% of a pint), convert to liter.

Measure from bottom of meniscus of graduated cylinder.

- Section 1 - Length
**PART D - QUESTIONS**`p. 9`

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