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Lesson 2 Science Test

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  • Give me an example of adhesion.
    Glue or tape
  • A ___________ is the liquid in which a solute is dissolved
    Solvent
  • Coffee
    Homogeneous
  • A _______________ is dissolved by a solvent
    Solute
  • A ____________ is dissolved by a solvent
    Solute
  • What is a malleable material?
    Material that can bend without cracking or breaking.
  • What separates liquids by boiling mixtures?
    Distillation
  • What describes conductivity?
    How materials allow the flow of heat or light.
  • Milk
    Homogeneous
  • What are the three main processes in which mixtures are separated?
    Filtration, distillation, and centrifuge
  • Salad
    Heterogeneous
  • Mechanical devices that spin at incredibly high speeds and allow fine particles to settle in a matter of seconds.
    Centrifuge
  • What is adhesion?
    The mutual attraction of unlike particles that causes them to stick together.
  • Give me an example of a malleable material. I showed this in class.
    A paper clip
  • What is the meaning of deformation?
    The deforming of a material due to force applied or temperature.
  • What is an example of conductivity?
    An electrical cord
  • What is a homogeneous mixture?
    Invisible; not easily separated
  • Give me an example of a heterogeneous mixture
    Pizza, salad, sand and water, cereal and milk, etc
  • What is a heterogeneous mixture?
    Visible; easily separated
  • A basket of laundry
    Heterogeneous
  • Pizza
    Heterogeneous
  • Which of the following best describes a physical mixture?
    A combination made from different materials that can easily and when two substances are combined, but are not chemically bonded
  • What does is mean if a solution is concentrated?
    If a solution is concentrated it means it has the right amount or a higher amount of a solute.
  • Give me an example of a homogeneous mixture
    Salt and water, lemonade, food coloring and water, etc.
  • Lemonade
    Homogeneous
  • Which profession studies the properties and applications of materials
    Material Scientists
  • What do we call objects that are made from matter?
    Materials
  • Which of the following processes uses a mesh screen to separate suspended mixtures?
    Filtration
  • What does it mean if a solution is diluted?
    It means that the solution has a low amount of solute
  • What is saturation?
    The point at which no more solute can be dissolved.
  • Is generally used to separate small solid particles that have been suspended in liquid or air.
    Filtration
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