1. Science Review 4 th Grade

2. What do we call each stage of the water cycle?

3. Water travels in a never-ending cycle of precipitation, accumulation, evaporation, and condensation. Answer

4. The steam coming from this cup is __. a)water vapor b)smoke c)Precipitation d)condensation

5. The steam coming from this cup is __. a)water vapor b)smoke c)Precipitation d)condensation We cannot see water vapor. It is invisible! Answer

6. What is evaporation?

7. The sun heats the water and causes it to change to water vapor, which then rises into the air. Answer

8. What do we call high wispy clouds?

9. What do we call high wispy clouds? Cirrus Clouds Answer

10. Name 3 different places that water accumulates.

11. Run-off takes water to lakes, rivers, and oceans. Water is also stored underground, called groundwater. Answer

12. A.Harsh storms followed by cooler temperatures B.Gentle rain followed by cooler temperatures. C.Gentle rain followed by warmer temperatures. D.Harsh storms but no change in temperature. What will the weather be in the near future? Why?

13. A.Harsh storms followed by cooler temperatures B.Gentle rain followed by cooler temperatures. C.Gentle rain followed by warmer temperatures. D.Harsh storms but no change in temperature. What will the weather be in the near future? Why? Answer

14. Clouds are made mostly of ___. a)water vapor b)water droplets and dust c)salt from the ocean d)fog

15. Clouds are made mostly of ___. a)water vapor b)water droplets and dust c)salt from the ocean d)fog Answer

16. What is this instrument and what does it do?

17. A thermometer measures temperature. Answer

20. What type of cloud is usually associated with fair weather?

21. Cumulus clouds are often called fair weather clouds. These are the white, puffy clouds that we might use to find shapes or pictures. Answer

22. Explain how condensation forms clouds.

23. When warm air rises, and then cools, the water vapor in the air changes into tiny water droplets. The droplets come together around dust particles to make clouds. Answer

24. What does the blue “H” mean, and what type of weather is associated with it?

25. The H means high pressure. The weather associated with high pressure is cool and dry. Answer

26. Water vapor condenses when the air gets ____. a) warmer b) cooler

27. Water vapor condenses when the air gets ____. a) warmer b) cooler Answer

28. What do we call a cloud that is close to the ground?

29. A cloud close to the ground is called fog. Answer

30. If cumulonimbus clouds are in the sky, what kind of weather should we expect?

31. If cumulonimbus clouds are in the sky, we should expect rain or thunderstorms. Answer

32. Name 3 different types of precipitation.

33. Precipitation will fall as rain, snow, sleet, or hail, depending on the temperature. Answer

34. What type of clouds cover the sky like a blanket, making it gray and overcast?

35. Stratus clouds cover the sky like a blanket, making it gray and overcast. Answer

36. What part of the water cycle is demonstrated in this picture?

37. Liquid turning into a gas is evaporation. Answer

38. At what temperature does water boil?

39. Water boils at 212 o Fahrenheit. Answer

40. What is this instrument and what does it do?

41. A wind vane shows the direction of the wind. Answer

42. What do we call puffy, white clouds that are associated with fair weather?

43. Puffy, white clouds that are associated with fair weather are called cumulus clouds. Answer

44. What does this symbol mean?

45. A red line with red half circles shows a warm front. The direction of the half circles show the direction that the front is moving. Answer

46. What type of front is this? How do you know? A.Warm front because the warm air is on top B.Stationary front because no mass is moving. C.Cold front because it has been cold for weeks. D.Cold front because the cold air mass is moving into the area, pushing up the warmer air.

47. 5.What type of front is this? How do you know? A.Warm front because the warm air is on top B.Stationary front because no mass is moving. C.Cold front because it has been cold for weeks. D.Cold front because the cold air mass is moving into the area, pushing up the warmer air. Answer

48. 1.What type of front does this symbol represent? A.Cold Front coming from the northeast B.Warm Front coming from the northeast C.Cold Front moving toward the northeast D.Warm Front moving toward the northeast

49. 1.What type of front does this symbol represent? A.Cold Front coming from the northeast B.Warm Front coming from the northeast C.Cold Front moving toward the northeast D.Warm Front moving toward the northeast Answer

50. A.a cold air mass rushed under a warm air mass forcing the warm air to rise B.a moist, warm air mass slid up and over a cold air mass. C.warm and cold air met and neither air mass had the force to move the other. This front formed when___.

51. A.a cold air mass rushed under a warm air mass forcing the warm air to rise B.a moist, warm air mass slid up and over a cold air mass. C.warm and cold air met and neither air mass had the force to move the other. This front formed when___. Answer

52. What tool is used to measure temperature?

53. A thermometer is used to measure temperature. Answer

54. What type of precipitation appears in the oval? Explain why.

55. Snow forms when water vapor freezes, and stays frozen as it falls to Earth. Answer

56. What is the purpose of an anemometer?

57. An anemometer measures wind speed. Answer

58. At what temperature does water freeze?

59. Water freezes at 32 o Fahrenheit. Answer

60. What is the purpose of a barometer?

61. A barometer measures air pressure. The air pressure helps predict the weather. Answer

62. What tool is used to measure precipitation? How does it work?

63. A rain gauge measures the amount of precipitation. Measurements on the container show the number of inches or centimeters of rain. Answer

64. What type of precipitation appears in the circle? Explain why.

65. Sleet forms when snow passes through warm air, melts, and then refreezes. Answer

66. Ecosystem Review 4 th Grade

67. If a lion is hunting a badger, the lion is the __________________ and the badger is the _____________.

68. If a lion is hunting a badger, the lion is the predator and the badger is the prey. Answer

69. What is the role of a producer in a food web?

70. The role of a producer in a food web is to produce energy from the sun. Answer

71. What do we call overlapping food chains?

72. Overlapping food chains are called food webs. Webs show how animals rely on other living things, and show the competition for food. Answer

73. What is the role of a decomposer in a food web?

74. In a food web, the role of a decomposer is to break down dead plants and animals. Answer

75. What do all first-level consumers eat?

76. First-level consumers eat plants, or producers. Answer

77. Name 2 organisms in this web that are prey to other animals.

78. The rabbit and the deer are both prey to the mountain lion. The rabbit, mouse, frog, and snake are prey to the hawk. Answer

79. What do the arrows in a food web represent?

80. The arrows in a food web show the transfer of energy from one organism to another. Answer

81. What might happen in this ecosystem if the hawks moved away?

82. If the hawks moved away, there might be an over-population of frogs. Answer

83. What is an omnivore?

84. An omnivore eats both plants and animals. Answer

85. Name an organism in this food web that is both predator and prey.

86. In this food web, the snake is both predator and prey. The snake is predator to the mouse and prey to the hawk. In this food web, the frog is also both predator and prey. The frog is predator to the cricket and prey to the hawk. Answer

87. What is the term used to describe each living organism’s specific role in the habitat ?

88. Each living organism’s specific role in the habitat is called a niche. Answer

89. What do we call a group of the same kind of plant or animal living in the same ecosystem ?

90. A group of the same kind of plant or animal living in the same ecosystem is called a population. Answer

91. What do we call the living organisms in an ecosystem?

92. The living organisms in an ecosystem are called biotic. Bio- means life. Answer

93. What type of consumer eats only plants?

94. Herbivores are consumers that eat only plants. Answer

95. Where do producers get their energy?

96. Producers get their energy from the sun. Answer

97. What is a community?

98. A community is all the different populations of plants and animals in an ecosystem. Answer

99. Name 3 abiotic, or non-living, parts of an ecosystem.

100. The abiotic, or non-living, parts of an ecosystem include sunlight, soil, wind, water, and rocks. Answer

101. What type of consumer eats only other animals?

102. Carnivores are consumers that only eat other animals. Answer