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squirty99
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What are the goals of science?
To observe and learn about the natural world.
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What is science?
Learning about the natural world.
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observation
act of noticing and describing events or processes in a careful, orderly way
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Scientific Methodology
- 1. observing and asking questions
- 2. making inferences and forming hypothesis
- 3. conducting controlled experiments
- 4. collecting and analyzing data
- 5. drawing conclusions
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inference
logical interpretation based on what scientists already know
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hypothesis
scientific explanation for a set of observations that can be tested in ways that support or reject it
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controlled experiment
all variables should be kept unchanged or controlled
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independent variable
variable that is deliberately changed
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dependent variable
variable that is observed and that changes in response to the independent variable
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control group
exposed to the same conditions as the experimental group except for one independent variable
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data
- detailed records of experimental observations
- gathering info
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scientific attitudes
- curiosity
- skepticism
- open mindedness
- creativity
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Peer review
publishing peer reviewed articles in scientific journals allow researchers to share new ideas and test and evaluate each others work.
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theory
well-tested explanation that unifies broad range of observations and hypotheses that enables scientists to make accurate predictions about new situations
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Bias
Particular preference or point of view that is personal, rather than scientific
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Living things
- Made up of basic units called cells
- are based on a universal genetic code,
- obtain and use materials and energy,
- grow and develop,
- reproduce,
- respond to their environment,
- maintain a stable internal environment,
- and change over time
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Stimulus
Signal two it's an organism responds
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Sexual reproduction
Cells from two parents unite to form the first south of the new organism
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Asexual reproduction
A single organism produces offspring identical to itself
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Homeostasis
Organisms expend energy to keep conditions inside their cells with in certain limits
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Metabolism
The combination of chemical reactions in which an organism builds up for break down materials
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Big ideas in biology
- Cellular basis of life
- Information and heredity
- Matter and energy
- Growth, development, and reproduction
- Homeostasis
- Evolution
- Structure and function
- Unity and diversity of life
- Interdependence in nature
- Science as a way of knowing
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Biosphere
All forms of life on earth are connected into the "living planet "
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Scientific measurement
Metric system when collecting data and performing experiments
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