exam 1 review water. what is a scientist doing when they are testing a hypothesis? o experimenting
DESCRIPTION
Refers to the path a stream may follow O ChannelTRANSCRIPT
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EXAM 1 ReviewWATER
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What is a scientist doing when they are testing a hypothesis?
O Experimenting
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Refers to the path a stream may follow
O Channel
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What form of water is represented in the picture?
Gas
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What are secondary resources?
O Books, Magazines, and newspapers
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This type of water is found as streams, rivers, and lakes
O Surface water
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What do we call 2 or more atoms that are linked together?
O molecules
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What is specific heat?
O The amount of energy needed to heat a substance by a particular
amount
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Which part of the scientific method uses primary resources?
OGathering information.
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What is responsible for surface currents?
O Wind
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What is sublimation?
O Solid water changes to gaseous/water vapor
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The upper boundary of ground water
O Water Table
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The property of water that allows water to attach to dust in the air to
form water droplets
O Adhesion
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Water typically flows along ________ in the bedrock.
O weaknesses
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What form of water is represented in the picture?
Solid
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The area where groundwater becomes surface water
O Discharge zone
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Which section of the scientific method would one find graphs, charts, and
calculations?
O Analyzing results.
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What are the 3 processes in which water can reach the atmosphere?
O 1. EvaporationO 2. TranspirationO 3. Sublimation
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This type of water is found in space s between rock particles below the
surface of the Earth
O Ground water
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As water changes state, energy can be _______or_______.
O Released/Stored
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Stores and allows the flow of groundwater
O aquifer
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The water table can _____ or ____ depending on the amount of water in the
aquifer
O Rise/fall
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This is an area of high ground that separates watersheds
O Divide
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The purpose of an experiment is found in which part of the scientific method?
O Identifying the question
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What are the four roles that water plays on Earth?
O Influences weatherO Shapes Earth’s Surface
O Supports LifeO Supports Human Activity
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Define Science.
O Science is a process of observing, studying, and thinking about things in your world to gain knowledge.
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What is a scientist doing when he or she is making a hypothesis?
O Making an educated guess.
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Refers to the amount of space between rock in an aquifer
O Porosity
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The measure of how easily water can flow through an aquifer
O Permeability
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The movement of water between the atmosphere, land,
oceans and living things is known as _________.
O The water cycle
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What is a theory?
O A proven hypothesis.
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The area where water trickles down and enters an aquifer
O Recharge zone
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What state of water is found in the picture?
liquid
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These 3 processes absorb energy from their environment
O MeltingO EvaporationO Sublimation
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What are the 5 characteristics of water that are necessary to support life?
O All living things are made of waterO All biological processes use water
O Cellular chemistryO Regulate TemperatureO Transport substances
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Water’s properties of cohesion, adhesion, high specific heat, and solvent are due to
what?
O Polarity
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Why does it take a lot of energy for water change its state of matter?
High specific heat of water
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These types of resources are original research
OPrimary Research
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What is deposition?
O The process of water changing from a gas directly to a solid.
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At what point does condensation occur?
O When water vapor is cooled enough
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How are water droplets formed?
O Water vapor latches on to small particles in the atmosphere.
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A series of steps used to solve a problem is referred to as what?
O The Scientific method
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What is freezing?
O Process where liquid water forms solid water (ice).
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What is transpiration?
O Water turns to water vapor inside a plant and released into the
atmosphere
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During which part of the scientific method is a scientist choosing variables?
OTesting the hypothesis
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What is a controlled variable?
O A variable that remains constant or unchanged.
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This part of the scientific method answers the main question of the experiment.
O Drawing Conclusions
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What are 2 ways in which water can reshape the Earth’s surface?
O Erosion-wearing away of rockO Carries away soil and sediment
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What is cohesion
O The property that holds molecules of a substance together
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What is an independent variable?
O Variable that changes
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Name the 3 processes where water releases energy into its surroundings
O FreezingO Condensation
O deposition
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Where does evaporation mostly occur?
O Over the oceans
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What property of water allows water droplets to “stick” together to form larger
water droplets?
O Cohesion
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How does precipitation fall on land?
O Winds carry clouds from ocean over land
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How do clouds, fog and mist form in the atmosphere?
O Water latches on to tiny particles to small droplets of water.
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What’ the process?
O Deposition
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Name the process.
O Condensation
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Name the process
O evaporation
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Which part of the water molecule is partially negative?
O Oxygen
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What are water molecules made of?
O 2 Hydrogen atomsO 1 oxygen atom
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A liquid that is used to dissolve substances is referred to as what?
O Solvent
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What are atoms?
O Tiny particles that make up matter
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Name the process
O freezing
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Name the process
O Sublimation
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Name the process
O melting
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Name the steps of the scientific method
O Identify the problemO Gather informationO Form a hypothesisO Test the hypothesis
O Analyze dataO Form conclusions
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What does it mean when something exhibits polarity?
O Anything that has a positive charge at one end and a negative charge at
the other end.
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Most of Earth’s water is found in what state of matter?
O liquid
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What is dependent variable?
O The variable that is being tested for.
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A good experiment should be ______ and ______.
O Reproducible/repeatable
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Name the 2 biggest uses of water in agriculture
O IrrigationO Care for Farm animals
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What is precipitation?
O any form of water that falls to Earth from the clouds
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The End!!!!
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