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Discovery science emphasizes inquiry and observation

Discovery science emphasizes inquiry and observation. Applied Biology Chapter 2.1 Record as Cornell Notes on Page 4 in Science notebook. Discovery vs. Hypothesis-based. Discovery science Describes nature Hypothesis-based science Explains nature. Biology. The scientific study of life

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Discovery science emphasizes inquiry and observation

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  1. Discovery science emphasizes inquiry and observation Applied Biology Chapter 2.1 Record as Cornell Notes on Page 4 in Science notebook

  2. Discovery vs. Hypothesis-based • Discovery science • Describes nature • Hypothesis-based science • Explains nature

  3. Biology • The scientific study of life • A way of knowing • Based on questions and answers • Causes and effects • Natural explanations to natural phenomenon

  4. Inquiry Process of investigation Thoughtful questions/testable questions

  5. Observations Use of the senses (vision, hearing, smelling, etc.) to gather and record information Physical, natural observations

  6. Data • Recorded observations • Based on senses and from use of instruments • Quantitative – recorded as measurements, NUMBERS • Qualitative – recorded as descriptions of observations (LETTERS/WORDS) • Qualities

  7. Inferences A logical conclusion based on observations Observations are certain Inferences have a level of uncertainty

  8. Generalization General conclusion Many observations come together to form a generalization Example: cells were discovered in bark in the 1600s, but it took many years of observations to determine that ALL living things are made of cells

  9. Generalization from Quantitative Data • Using graphs to identify general patterns • There are often exceptions

  10. Hypothesis A suggested answer to a well-defined scientific question Testable If/then/because statement Formula: If the IV is ________________, then the DV will ____________________, because _______________________.

  11. Hypotheses are supported or not supported A hypothesis that is not supported is STILL USEFUL! It’s ok if your hypothesis is “wrong”

  12. Variable A condition that can differ within the experiment

  13. Controlled experiment Tests the effect of a single variable ONE variable is changed/manipulated ALL OTHER variables are CONTROLLED, kept CONSTANT or the SAME

  14. Independent Variable • Condition that is manipulated or changed by a scientist • Condition that is tested • Example: Which type of bird seed is eaten more often? Brown seeds, black seeds, white seeds? • IV is bird seed • Levels are brown, black, and white

  15. Dependent Variable Condition that is observed and measured during an experiment Experimental data collected “DEPENDS” on the independent variable Example: Number of bird seeds eaten of each different type

  16. Constants • Conditions or variables that DO NOT CHANGE • They REMAIN CONSTANT • *CONTROL GROUP- a condition where the group is treated exactly like the experimental subjects, but the IV is not manipulated • Example: Placebo, sugar pill, in a medical study

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