Study

SCIENCE 7

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  • True or False: Sublimation is the phase change from a gas to a solid.
    False
  • Give two examples of compounds
    Water, vinegar, carbon dioxide, baking soda, salt, sugar
  • Type of scientific model: it represents ideas and theories about a phenomenon, often using diagrams or flowcharts.
    Conceptual model
  • It occupies space and has mass.
    Matter
  • Give two examples of elements
    H, He, Fe, Ar, Be, C
  • True or False: Matter is composed of particles that are in constant, random motion.
    True
  • True or False: Temperature affects the kinetic energy of particles in a substance.
    True
  • Give three examples of bases
    baking soda, soap, detergent
  • The physical combination of two or more substances that forms homogeneous mixture.
    Solution
  • Give three examples of acids
    vinegar, lemon, softdrink
  • Give the three factors affecting the solubility
    temperature, stirring, surface area
  • Enumerate the steps of scientific method
    Observe, Problem, hypothesis, experimentation, analysis, conclusion
  • This solution contains less solute particles than the solvent can dissolve.
    Unsaturated
  • Enumerate the 7 fundamental units of measurement