METRICS & SCIENTIFIC METHOD CHAPTER1. METRICS WE WILL MEASURE 5 THINGS IN LAB 2

METRIC

S &

SCIENTI

FIC

METHOD

CH

AP

TE

R1

METRICS

WE WILL MEASURE5

THINGSIN LAB

2

METRICS

I. DistanceA.Measured in metersB.How long something is; same as

length (l), width (w), height (h), depth (d)

C.Area=length x widthUnits meters(m) x meters(m) =

square meters (m2)

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Meter stick

METRICS

II. VolumeA.Measured in liters (sometimes cm3)B.How much space it takes upC.Can be measured

1. Length x width x height2. Fluid displacement

4Meter stick

Graduated cylinder

METRICS

III.MassA.Measured in gramsB.How much matter something hasC.1 cm3 water = 1 milliliter water = 1

gram waterD.1 gram = 1 paper clip

5

Electronic balance

METRICS

IV. TemperatureA.Measured in degrees CelsiusB.Measure of warmth or coldnessC.Water freezer at OoC and boils at

100oC

6

thermometer

METRICS

V. TimeA.Measured in seconds (s)B.Period during which something exists

or continues

7Stopwatch/timer

METRICS

Metric prefixes

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kilo-(k-)

hecto-

(h-)

deka-

(D-)

meter

(m)liter (L)gram (g)

deci-

(d-)

centi-

(c-)

milli-(m-)

1000 100 10 1 0.1 0.01 0.0001

103 102 101 100 10-1 10-2 10-3

Conversion practice

SCIENTIFIC METHOD

1. State the Questiona. Write a question that asks what you

want to know

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SCIENTIFIC METHOD

2. Collect informationa. Information may come from

observations or research.

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SCIENTIFIC METHOD

3. Form a Hypothesisa. Make an educated guess about

what the answer to the question will be.

b. The hypothesis should be based on the information you collected.

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SCIENTIFIC METHOD

4. Test the Hypothesisa. Perform the experiment and check

the resultsb. Control group vs. Experimental

group

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SCIENTIFIC METHOD

5. Record and Study Dataa. The results of an experiment are

summarizedb. Tables are good for organizing datac. Graphs are good for averaging datad. Look for relationships or trends in

the data

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SCIENTIFIC METHOD

6. Write a Conclusiona. Write a summary that compares the

hypothesis to the data and answers the question

b. It will either support or refute the hypothesis

c. Results that do not support the hypothesis may help to make a new and improved hypothesis and a new experiment

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