Do Now
• Define science
• List 5 different branches of science
Science is a process of observing, studying, and
thinking about things in your world to gain knowledge.
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Biology-living things
Chemistry-atoms/molecules
Physics-motion
Astronomy-space
Zoology-animals
Botany-plants
Microbiology-microorganisms
Genetics-genes/heredity
Ecology-environment
Paleontology-fossils
Psychology-brain/behavior
Gastroenterology-digestive system
Neurology-nervous system
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Anatomy-body parts
Physiology-how body parts work
Ichthyology-fish
Entomology-insects
Ornithology-birds
Geology-earth
Climatology-climate
Meteorology-weather
Oceanography-oceans
Pathology-diseases
Virology-viruses
Hydrology-water
movement/distribution
Through what method do scientists try
to solve problems?
• Scientific method
– Definition: a series of steps used to solve a
problem.
The Scientific Method
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Identify the problem
Gathering information
Develop hypothesis
Test the hypothesis
Analyze the results
Draw conclusions
The Scientific Method
• Identifying a problem
• Purpose?
• Enhance understanding
• Gathering Information
• Research
• Indicate if and where controversy exists
• Make a hypothesis
• Definition- an educated guess
The Scientific Method
• Working with a partner brainstorm several
ideas for an experiment.
• Come up with a testable hypothesis.
The Scientific Method
• Test the hypothesis
• Experimentation
– Procedures
• Choose variables
• Dependent variable—Change in response to
other variables; what is being tested
• Independent variable—influences the
dependent variable; variable that changes
• Control—independent variable is held constant;
unchanged
– Materials gathered
• Reproducibility and repeatability?
The Scientific Method
• Analyze the Results
• What occurred?
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Observations
Measurements
Graphs
Charts
• Draw conclusions
• Answers the question
• Is the hypothesis correct
– Theory—proven hypothesis
• Problems/Changes in the experiment
• Using the article “Is Txting 2 Much Bad 4 U,”
brainstorm with a partner about a possible
experimental design.
• Be sure to come up with a possible Problem
statement, hypothesis, and experimental
design.