L2 scientific inquiry

L2 scientific inquiry - 8/23/2009 1 Biology is a...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 8/23/2009 1 Biology is a logic-based science • Experiments may be observational in nature (ex. behavioral ecology) • they may be discovery-based • they may be strictly controlled in order to reduce error •All sciences are limited to what can be tested (= not subjective questions) Two primary research methods in biology: • Discovery-based science • Hypothesis-based science (scientific method) 1) Discovery Science- collect and analyze data, not hypothesis driven ex: testing drugs to determine usefulness in various diseases : investigating gene functions 2) Scientific Method-series of steps used to answer questions logically Hypothesis driven Usually tested with a controlled experiment Results should be repeatable Five major steps to the Scientific Method: 1. Make observations- question things! 2. Formulate a hypothesis 3. Design and perform a controlled experiment/observe 4. Analyze results 5. Draw conclusions (accept or reject hypothesis), present results Hypotheses 3 formats: • Question : Does the color of light affect plant growth? • Conditional Statement : The color of light may affect plant growth. • If…then Statem ent: If plant growth is related to the color of light, then some colors of light will produce greater growth than others. 8/23/2009 2 Hypotheses must state a relationship in order to not be just a prediction… ex.: If I play the lottery, then I will get rich. ex. If it is cloudy, then it will rain. Better: If the frequency of winning is related to the frequency of buying lottery tickets, then the more tickets I buy, the more money I’ll win. Hypotheses must be falsifiable There are other inhabited planets in the universe....
View Full Document

This note was uploaded on 02/22/2010 for the course BIO 181 taught by Professor Milton during the Fall '08 term at N.C. State.

Page1 / 5

L2 scientific inquiry - 8/23/2009 1 Biology is a...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online