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33 Cards in this Set
- Front
- Back
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Capitalism
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an economic system based on private property and free enterprise
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Anarchists
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people who believe there should be no government
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Red Scare
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period when the government went after the Reds (Communists) and others with radical views-arrests, raids, ransacked homes and offices, seized records, deportations (expelled from the country)
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Communism
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system of social organization in which ALL economic and social activity is controlled by a totalitarian state dominated by a single and self-perpetuating political party
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Socialism
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similar to communism, but as citizens you have limited freedoms regarding specifics
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expansion
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molecules are spreading apart
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contraction
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molecules come together
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energy
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ability to do work
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heat
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form of energy; makes molecules move fasterq
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variable
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something that can be changed in an experiment that can change the outcome of the experiment
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hypothesis
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an educated guess of the conclusion of the experiment
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inference
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a conclusion drawn from an observation
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density
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the amount of matter in a given space or volume
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diffusion
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a type of positive transport in cells in which molecules are moved from areas
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cohesion
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attraction between molecules
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air pressure
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the force of air on an object
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Kinetic Theory
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all matter is made up of very tiny particles that are in constant motion
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Give a real life situation for expansion
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marshmellow, hot air ballon, and popcorn
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Give a real life situation for contraction
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ballon, tires on your bike
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Give a real life situation for a solid dissolving into a liquid
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sugar cube into H2O, hot chocolate powder into hot water.
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Give a real life situation for gas moving through or dissolving in a liquid
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carbonated bubbles in soda, Alka seltzer bubbles in water
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Give a real life situation for a solid changing into a liquid
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ice cream, ice cube, candle
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Give a real life situation for a solid changing directly into gas
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dry ice
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Give a real life situation for gases moving through a gas.
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hot air ballon, air freshner
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Give a real life situation for a gas changing back into a liquid (condensation).
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fog, dew the grass
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Give a real life situation for a liquid moving to a liquid
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milk in coffee, chocolate syrup in milk
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Give a real life situation for a liquid changing into a solid (freezing)
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water into ice cubes
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Kinetic theory explains expansion
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Brass Ball Ring Lab
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Kinetic theory explains contraction
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Flask Lab 2
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Kinetic theory explains changing state
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Dry Ice Lab
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Kinetic theory explains density
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Lava Lamp Lab
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Kinetic theory explains diffusion.
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Because molecules are in constant motion, liquid will blend evenly with other liquid and gases will blend evenly with other gases all by themselves. Gases will blend faster because they move and have no cohesion.
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Kinetic theory explains dissolving
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The liquid molecules have so much energy that they constantly bounce off the solid molecules. Eventually the solid molecules gain enough energy to become a part of a liquid
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