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ספריית תרגולים
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פתור תרגול זה עכשיו
Facts About Water
  • 1. What percentage of the earth's water is freshwater?
A) 5%
B) 8%
C) 25%
D) 12%
E) 3%
  • 2. What is the source of energy for the water cycle?
A) The earth's rotation
B) Wind energy
C) Ocean tides
D) The sun
E) Coal fired power plants
  • 3. What is the name for a small stream that flows into a bigger stream?
A) Small stream
B) Dendritic stream
C) Loptic stream
D) Tributary
E) Lentic stream
  • 4. What is the largest ocean?
A) Arctic
B) Indian
C) Pacific
D) Lake Superior
E) Atlantic
  • 5. Which of these is not one of the five Great Lakes?
A) Huron
B) Michigan
C) Ontario
D) Hudson
E) Superior
  • 6. What is the process by which vapor becomes a liquid or solid?
A) condensation
B) precipitation
C) infiltration
D) transpiration
E) evaporation
  • 7. What is most of the freshwater used for in the USA?
A) industry
B) irrigation
C) public supply
D) mining
E) livestock
  • 8. What state uses the most freshwater in the USA?
A) New York
B) California
C) Arizona
D) Florida
E) Colorado
  • 9. What state uses the most water for mining?
A) Oklahoma
B) Washington
C) Montana
D) Wyoming
E) Texas
  • 10. What makes water smell like rotten eggs?
A) Hydrogen sulfide gas
B) it really is rotten eggs in the water
C) the type of rocks that the water flows through
D) man made pollution
E) dead animals in the water
  • 11. Sometimes a glass of drinking water looks cloudy or milky - why does this happen?
A) tiny air bubbles
B) it is the turbidity
C) water purification chemicals from the water treatment plant
D) it is really soap stuck to the glass
E) pollution
  • 12. What percentage of your body is water?
A) up to 60%
B) up to 40%
C) up to 50%
D) up to 30%
E) up to 70%
  • 13. What is the longest river in the world?
A) Congo
B) Mississippi
C) Nile
D) Amazon
E) Rio Grande
  • 14. How much water does the average person use each day?
A) 40 to 60 gallons
B) 60 to 80 gallons
C) 100 to 120 gallons
D) 20 to 40 gallons
E) 80 to 100 gallons
  • 15. Water is the only substance that can exist as a liquid, gas and solid?
A) False
B) True
  • 16. Water covers about 70% of the entire earth.
A) False
B) True
  • 17. The water in the ocean is good to drink.
A) True
B) False
  • 18. Water is a(n) _________ resource.
A) extinct
B) unusable
C) abundant
D) renewable
  • 19. The water that dinosaurs drank _________.
A) is gone
B) was not the same kind of water that we drink today
C) is still in the water cycle
D) was salt water
  • 20. After rain falls upon the earth, it may _________.
A) travel downhill until it reaches the ocean
B) all of the above
C) evaporate again very soon
D) stay underground for years
  • 21. What are clouds?
A) masses of cotton balls
B) masses of condensed water formed by cooled water vapors
C) masses of evaporated water
D) masses of condensed potato soup
  • 22. If we use too much water, someday it will all be gone.
A) True
B) False
  • 23. Water vapor is a _________.
A) solid
B) plasma
C) gas
D) liquid
  • 24. Plants and trees contribute to the water cycle by evaporating through their leaves by _________.
A) infiltration
B) evaporation
C) condensation
D) transpiration
E) precipitation
  • 25. Two percent of our fresh water supply is unusable because it is frozen in _________.
A) tundra
B) glaciers
C) mountains
D) oceans
  • 26. When water hits land and is soaked into the ground, the water becomes _________.
A) plant food
B) solid
C) vapor
D) groundwater
  • 27. The water cycle is also called the hydrologic cycle.
A) True
B) False
  • 28. Water contracts (gets smaller) when it freezes.
A) False
B) True
  • 29. Water has a high surface tension (sticks to itself).
A) False
B) True
  • 30. Condensation is water coming out of the air.
A) False
B) True
תלמידים שפתרו תרגול זה פתרו גם :
Wintringham indices level 7
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