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physical science
physics, astronomy, chemistry
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Natural science
natural phenomenon (and biological life)
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Classifying organisms
according to properties
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Taxonomy
- branch of biology that names and
- classifies species into groups of increasing breadth
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Kingdoms of Life
- Domain
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
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Pseudoscience
- individuals make scientific-sounding claims
- that are not supported by trustworthy, methodical scientific studies
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Anecdotal observations
- based on only one or a few observations, people conclude that there is or is
- not a link between two things.
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scientific method
Step 1: Make observations.Step 2: Formulate a hypothesis.Step 3: Devise a testable prediction.Step 4: Conduct a critical experiment.Step 5: Draw conclusions and make revisions.
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hypothesis
- –Proposed explanation for a natural
- phenomenon
- –Proposition based on previous
- observations or experimental studies
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theory
widely accepted hypothesis
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living vs non living
- reproduce via DNA
- grow and develop
- take energy from environment
- sense and respond to environment (plant towards sun)
- maintain constant internal conditions (homeostasis)
- evolve over time
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hierarchy of life
atom, molecule, cell, tissue, organ, organism, population, community, ecosystem, biosphere
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Archea
prokaryotes in extreme environments
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Bacteria
single cell living anywhere unicellular
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eukarya
uni and multicellular
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discovery based science
collection and analysis of data without hypothesis ie jane goodal
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control group
constant don't change
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experimental group
- variables
- independent (changes/cause)
- dependent (measured on IV/effect)
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eliminate bias
double blind study
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size and sample
standardize conditions
matter
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