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8th Grade Science

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  • This makes life functions possible
    ENERGY
  • These are pathogens that spread infectious and contagious diseases
    micro-organisms
  • What is an example of chemical digestion?
    Release of enzymes to breakdown food
  • Chloroplasts are found only in what cells?
    Plant cells
  • Reproductive system
    produces offspring
  • CO2 and O2 are exchanged in this system
    respiratory system
  • Energy is needed by ....
    all living things
  • A plant that does not need a male to reproduce
    asexual
  • What is another way to say "stays the same"
    constant
  • Circulatory / Cardiovascular System
    transports nutrients and oxygen
  • A clear jelly-like fluid in a cell
    cytoplasm
  • cell - tissue - organ - organ system - organism What is this describe?
    The 5 levels of organization from simple to complex
  • What is photosynthesis?
    how plants are able to make food
  • What removes liquid in the form of sweat?
    skin
  • What releases heat in order to cool?
    skin
  • What is being MEASURED
    dependent variable
  • Excretory System - what is the main function?
    removes waste from the body
  • Making a conclusion based on what you observe
    inference
  • Something that feeds of dead things to obtain its energy
    decomposer
  • Protection, shape, support are the functions of this.
    cell wall
  • Animals and plants use food and release energy through this process.
    Cellular Respiration
  • Respiratory System
    Exchanges gases
  • Cell wall is only found in this cell.
    cell wall
  • Musculoskeletal System
    Locomotion / movement
  • What is an example of mechanical digestion?
    Grinding or chewing food
  • Their function is to use sunlight to conduct photosynthesis.
    chloroplasts
  • sunlight + CO2 + H2O =
    photosynthesis
  • What removes waste from the body? (which system)
    excretory system
  • This only allows certain substances in and out of animal and plant cells.
    cell membrane
  • Fossils provide evidence of what?
    evidence that dinosaurs once existed
  • This stores h2o
    vacuole
  • What is the job/function of the nucleus?
    Stores DNA and is the control center of the cell
  • The SUM of all chemical reactions through the breakdown of food
    metabolism
  • What removes liquid in the form of urine?
    kidneys
  • What is being CHANGED
    independent variable
  • Cell wall and Chloroplasts are only found in these cells
    plant cells
  • Cytoplasm is where these take place
    chemical reactions
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