Section 1-3 The Nature of Biology

Quantiative Research Numerical Data Counts Measurements Can be used to make a graph or table

International System (SI) Expressed in multiples of ten Length – meter Mass – gram Volume - liter Time – second Temperature – Kelvin or Celsius Area (L X W) – square meters

Descriptive Research Observational Data Written descriptions of what scientists observe

How many jumps does it take? Ladder Method 1 2 3 KILO 1000 Units HECTO 100 Units DEKA 10 Units DECI 0.1 Unit Meters Liters Grams CENTI 0.01 Unit MILLI 0.001 Unit How do you use the “ladder” method? 1st – Determine your starting point. 2nd – Count the “jumps” to your ending point. 3rd – Move the decimal the same number of jumps in the same direction. 4 km = _________ m Starting Point Ending Point How many jumps does it take? 4. 1 __. 2 __. 3 __. = 4000 m