1. Scientific Research & Tools
Biology
Spring 2016

2. Definitions
Observations- process of gathering information about events or processes in an orderly way.
Data- information gathered from observations.
Inference- logical interpretation based on prior knowledge and experiences and/or collected data.
Metric System- decimal system of units based on a scale in multiples of ten.

3. Two Main Types of Scientific Research
Quantitative Research- Research in which data is numerical.
Examples of tools used:
Thermometer
Used to measure temperature (Kelvin, °C, °F)
Balance
Used to measure mass (grams)
Stopwatch
Used to measure time (seconds)

4. Two Main Types of Scientific Research
Qualitative Research (aka Descriptive Research)
Research based on observations.
Data is descriptive
Examples of tools used:
Binoculars
Camera
Tape recorder

5. Microscopes
Microscopes are devices that provide magnified images of structures that are too small to be seen with the naked eye.
The History of the Microscope
Challenge!!
How many words can you make
out of the prefix micro-?

6. Microscopes Two types: Compound Light Microscope-
allows light to pass through the specimen and uses two lenses to form an image.

7. Microscopes Electron Microscopes-
uses beams of electrons, rather than light, to form an image.
It is 1,000 times more detailed than a light microscope!