7th Grade Science

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7th Grade Science

• Key Concepts

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General Info.

• To recall important information from 7th grade
  science, focusing on key standards
• Questions??? Please raise hand and make sure that
  it has to do with topic
• Notes

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EARTH SPACE SCIENCES

• Materials move from the land, to water, to the
  air
• -Lithosphere (land), hydrosphere (water),
  atmosphere (air)
• Water Cycle
• Water Pollution (rivers, lakes, groundwater)
  becoming more unsuitable for life.
• Weather predictions
• -based on changing cloud types fronts
• -observations measurements are
  vital/important (what is happening now --gt here
  and other places)

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Weather Cont.

• Reading weather maps (to interpret local,
  regional, national weather)
• Biomes based on temperature precipitation/clima
  te
• Water cycle is associated with different
  weather-related events (tornadoes, floods,
  droughts, hurricanes, etc.)

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LIFE SCIENCES

• Interactions between organisms or populations
  through symbiotic relationships (they help each
  other out predator-prey, parasitism, mutualism,
  commensalism)
• Number of organisms in ecosystem depends on
  amount of biotic (living) abiotic (non-living)
  resources. (MILKWEED BUGS)
• Some environmental changes occur slowly/some
  quickly
• Natural occurrences human activity affect
  ecosystems
• Solar energy is transferred to chemical energy in
  multicellular organisms, used to carry out
  functions
• Organisms are extremely diverse

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PHYSICAL SCIENCES

• Matter can change forms, but total amount of
  matter remains same (water, air, etc.)
• Potential vs. Kinetic Energy
• Different forms of energy (electrical,
  mechanical, chemical, thermal, nuclear, radiant,
  acoustic) -Energy can change forms but
  total amount of energy remains constant
• Energy transformation in a simple closed system
  (flashlight)

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SCIENCE TECHNOLOGY

• Science technology are interconnected and using
  technology involves assessment of the benefits,
  risks costs.
• Science technology only answer some questions
  and human problems

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SCIENTIFIC INQUIRY

• Variables
• Science Asking Finding Answers to Questions
• Using appropriate tools
• There may be more than one good way!
• Graphs, tables, charts math science are two
  very important concepts
• Sci-Fair Concepts (Scientific Method)

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SCIENTIFIC WAYS OF KNOWING

• REPETITION BUILDS ACCURACY!!!
• Doing experiments over again reduces bias
• The work of science requires a variety of human
  abilities qualities that are helpful in daily
  life (reasoning, creativity, skepticism, openness)