Worksheet: The Water Cycle

In this worksheet, we will practice describing the water cycle, and explaining its importance for living organisms.

Q1:

Which of the following is not a stage in the water cycle?

  • ADecomposition
  • BPrecipitation
  • CTranspiration
  • DCondensation
  • EEvaporation

Q2:

Which of the following is a term given to water that is safe to drink?

  • APotable
  • BPurified
  • CDeionized
  • DDetoxified

Q3:

Which of the following changes of state occurs when water evaporates?

  • ASolid gas
  • BSolid liquid
  • CLiquid gas
  • DGas liquid
  • ELiquid solid

Q4:

Which of the following changes of state occurs when water condenses?

  • ALiquid solid
  • BSolid liquid
  • CGas liquid
  • DLiquid gas
  • EGas solid

Q5:

Which of the following is the process in the water cycle by which water vapor in the atmosphere forms clouds?

  • ACondensation
  • BTranspiration
  • CPrecipitation
  • DEvaporation
  • ESublimation

Q6:

Plants absorb water from the soil. Which of the following biological processes carried out by plants requires water as one of its reactants?

  • APhotosynthesis
  • BMitosis
  • CRespiration
  • DDifferentiation

Q7:

The flowchart provided outlines the basic processes of the water cycle, excluding transpiration.

Which of the following words should replace label 1?

  • ACondenses
  • BFreezes
  • CEvaporates
  • DPrecipitates
  • EBoils

Which of the following words should replace label 2?

  • APrecipitation
  • BWaterfalling
  • CCondensation
  • DEvaporation
  • ESublimation

Q8:

The diagram provided shows a basic outline of reverse osmosis, a process that can produce potable water from salty water. Which of the following is the purpose of the semipermeable membrane?

  • ATo trap the water molecules as they move through the membrane
  • BTo ensure the water only flows in one direction
  • CTo increase the pressure acting on the water
  • DTo remove large, unwanted particles and dissolved impurities from the water

Q9:

By what process in the water cycle does water move from the soil into plants and, eventually, leave the plants through the stomata?

  • ATranslocation
  • BEvaporation
  • CCondensation
  • DTranspiration
  • EPrecipitation

Q10:

The flowchart provided outlines the basic processes of the water cycle, excluding transpiration.

Which of the following words should replace label 1?

  • ACoagulates
  • BPrecipitates
  • CSublimes
  • DSolidifies
  • ECondenses

Which of the following words should replace label 2?

  • ASolid ice
  • BNitrogen
  • CCarbon dioxide
  • DWater vapor

Q11:

The diagram provided shows a simple solar still.

Which change of state occurs at step 1?

  • ALiquid solid
  • BGas solid
  • CGas liquid
  • DLiquid gas

Which change of state occurs at step 2?

  • AGas liquid
  • BLiquid gas
  • CGas solid
  • DLiquid solid

If this equipment is reliable, what should be produced in step 3?

  • ASalty water
  • BSalt
  • CCondensed solution
  • DPotable water

Q12:

The diagram provided shows a simple solar still.

Which of the following best explains why the water in the salty water evaporates?

  • AThe solar radiation initiates a chemical reaction in the water, causing some water molecules to evaporate.
  • BAs more water is added, the water molecules start to become more compressed and start to change their state into a gas.
  • CThe light from the solar radiation provides the water molecules with more energy, so they move to the top of the still.
  • DThe heat from the solar radiation increases the temperature and initiates a change of state.

Which of the following happens as the evaporated water comes into contact with the glass sheet?

  • AIt condenses.
  • BIt freezes.
  • CIt evaporates.
  • DIt boils.

Q13:

By which process in the water cycle does water from oceans and rivers form gaseous water in the atmosphere?

  • AEvaporation
  • BCondensation
  • CPrecipitation
  • DSublimation
  • ETranspiration

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