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Lesson 2 Science Test
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Milk
Homogeneous
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Give me an example of a malleable material. I showed this in class.
A paper clip
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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.
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What does it mean if a solution is diluted?
It means that the solution has a low amount of solute
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A _______________ is dissolved by a solvent
Solute
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What do we call objects that are made from matter?
Materials
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A ____________ is dissolved by a solvent
Solute
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What are the three main processes in which mixtures are separated?
Filtration, distillation, and centrifuge
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A basket of laundry
Heterogeneous
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What separates liquids by boiling mixtures?
Distillation
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What is the meaning of deformation?
The deforming of a material due to force applied or temperature.
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What is a heterogeneous mixture?
Visible; easily separated
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Salad
Heterogeneous
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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
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What is an example of conductivity?
An electrical cord
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What describes conductivity?
How materials allow the flow of heat or light.
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What is a homogeneous mixture?
Invisible; not easily separated
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A ___________ is the liquid in which a solute is dissolved
Solvent
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Is generally used to separate small solid particles that have been suspended in liquid or air.
Filtration
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Which of the following processes uses a mesh screen to separate suspended mixtures?
Filtration
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Give me an example of a homogeneous mixture
Salt and water, lemonade, food coloring and water, etc.
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Pizza
Heterogeneous
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Which profession studies the properties and applications of materials
Material Scientists
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What is saturation?
The point at which no more solute can be dissolved.
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Give me an example of a heterogeneous mixture
Pizza, salad, sand and water, cereal and milk, etc
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Lemonade
Homogeneous
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Mechanical devices that spin at incredibly high speeds and allow fine particles to settle in a matter of seconds.
Centrifuge
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What is adhesion?
The mutual attraction of unlike particles that causes them to stick together.
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Give me an example of adhesion.
Glue or tape
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Coffee
Homogeneous
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What is a malleable material?
Material that can bend without cracking or breaking.
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Okay!
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