Scientific Measurements

Student will be able to1. Understand why scientist use a standard measure

2. Describe the standard units of measure

3. Describe common measure used in science

4. Analyze graphing in science

• Common Practice

44

59

• Measurement Systems

– English System (red)– Metric System

•Metric System Prefixes

– kilo (k) means 1,000 x– centi (c) means 0.01 x– milli (m) means 0.001 x– micro (µ) means 0.000001 x

45

• Length (how long)

- Measured in Meter (m)

+ Kilometer (km)

+ Centimeter (cm)

+ Millimeter (mm)

+ Micrometer (µm)

46

• Mass (how much stuff)

– Gram (g)+ Kilogram (kg)

+ Milligram (mg)

48

• Volume (how much space)

50

– Liter (l)+ Milliliter (ml)

• Time

– Second

53

• Temperature (movement)

– Celsius– Kelvin

54

• Estimation

61

• Accuracy & Precision

– Accuracy = How close is it to real value– Precision = How close is each measurement

to each other

62

• Mean, Median, Mode

66

- Mean = Average- Median = Middle- Mode = Most often