Introduction to the Water Cycle Lesson for Middle School Science

This lesson #2 in the Biogeochemical Cycles Unit for Middle School Science.
Lesson #2 -The Water Cycle -50 Minute Lesson. A picture of a glass water begins this lesson. Interest is sparked when the slideshow describes that it may have been part of dinosaur urine or drank by Julius Caesar. It gets the class realizing that the water cycle is the continuous movement of water, and water molecules. The lesson moves into some critical red slide notes that students record in their work bundle. A step by step drawing also has the students draw the water cycle with key vocabulary. Several questions reinforce the learning along the way. I usually bring in some cold soda cans for an observation of condensation. A neat activity demonstrates the water cycle in a 2L soda bottle. This can work as a demonstration or cooperative group activity. Teacher cuts plastic bottle near the top so the top can be inverted and placed into the 2L bottle. Fill the bottle with warm water, and place ice in the top. Condensation will form on the inside of the bottle, and precipitation as it drips down the side. Another activity that can work as a demonstration builds a solar still.

1. The Water Cycle Part 2 Lesson 2

2. RED SLIDE: These slides contain critical notes and important fill-in the blanks. Please record the important terms in your work bundle. Copyright © 2024 SlideSpark LLC First and last Name Science, Grade, Class

3. RED SLIDE: These slides contain critical notes and important fill-in the blanks. Please record the important terms in your work bundle. You’ll need these notes to complete the work bundle Copyright © 2024 SlideSpark LLC First and last Name Science, Grade, Class

4. Keep an eye out for “The-Owl” and raise your hand as soon as you see him. He will be hiding somewhere in the slideshow today Copyright © 2024 SlideSpark LLC

5. You can show respect by… Listening when the teacher or others are talking. One speaker at a time, please raise your hand. Please no cross-room conversations during work time . Respect Safety Responsibility Make Good Choices Listen to the teacher and others. Please no shout outs. One speaker at a time. Please raise your hand. First, Last, and Always. Focus on Task completion Avoid Distractions Stay Organized Help others Be Present Never Give up

6. Summary

7. Summary Water is being continually created by many biophysicochemical processes. As such, water can be viewed as being constantly “refreshed” or “rejuvenated.”

8. Summary Water is being continually created by many biophysicochemical processes. As such, water can be viewed as being constantly “refreshed” or “rejuvenated.” The water in dinosaur pee is not the same water that we drink. The H’s and O’s that make up H 2 O are the same ones present when the dinosaurs roamed the Earth.

9. New Area of Focus: The Water Cycle Copyright © 2024 SlideSpark LLC

10. New Area of Focus: The Water Cycle AKA – The Hydrologic Cycle Copyright © 2024 SlideSpark LLC The Water Cycle

11. New Area of Focus: The Water Cycle AKA – The Hydrologic Cycle Driven by the sun and gravity. Copyright © 2024 SlideSpark LLC The Water Cycle

12. New Area of Focus: The Water Cycle AKA – The Hydrologic Cycle Driven by the sun and gravity. Copyright © 2024 SlideSpark LLC The Water Cycle

13. Copyright © 2024 SlideSpark LLC

14. Copyright © 2024 SlideSpark LLC Driven by the Sun

15. Copyright © 2024 SlideSpark LLC Driven by the Sun Gravity

16. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C Driven by the Sun

17. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C

18. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C

19. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C Evaporation

20. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C Evaporation

21. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C Evaporation Condensation

22. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C Evaporation Condensation

23. What do we already know? Explain yourselves with this template. Copyright © 2024 SlideSpark LLC A B C Evaporation Condensation Precipitation

24. The wind is driven by the uneven heating and cooling on planet earth (from the sun) and moves moisture around the planet. WIND

25. This is basically everywhere on earth if there was no wind

26. Which of the other terms are we unsure of.. Condensation Evaporation Precipitation Percolation Transpiration Sublimation Infiltration Ocean Storage Ground Water Storage Freshwater discharge Surface run-off Copyright © 2024 SlideSpark LLC

27. Which of the other terms are we unsure of.. Condensation Evaporation Precipitation Percolation Transpiration Sublimation Infiltration Ocean Storage Ground Water Storage Freshwater discharge Surface run-off Copyright © 2024 SlideSpark LLC We will review these terms

28. Which of the other terms are we unsure of.. Condensation Evaporation Precipitation Percolation Transpiration Sublimation Infiltration Ocean Storage Ground Water Storage Freshwater discharge Surface run-off Copyright © 2024 SlideSpark LLC We will review these terms and learn some new terms

29. The hydrologic cycle (Water Cycle): Copyright © 2024 SlideSpark LLC

30. The hydrologic cycle (Water Cycle): The continuous movement of water on, Copyright © 2024 SlideSpark LLC

31. The hydrologic cycle (Water Cycle): The continuous movement of water on, Copyright © 2024 SlideSpark LLC On

32. The hydrologic cycle (Water Cycle): The continuous movement of water on, above, Copyright © 2024 SlideSpark LLC Above On

33. The hydrologic cycle (Water Cycle): The continuous movement of water on, above, and below the surface of the earth. Copyright © 2024 SlideSpark LLC Above On Below

34. Step by step drawing of the water cycle.

35. No making fun of the awesome drawings….

36. Gravity

37. Gravity

38. Driven by the Sun

39. Evaporation

40. Evaporation liquid to gas

41. Evaporation liquid to gas Condensation

42. Evaporation liquid to gas Condensation gas to liquid

43. Evaporation liquid to gas Condensation gas to liquid Precipitation

44. Evaporation liquid to gas Condensation gas to liquid Precipitation Solid / Liquid

45. Evaporation liquid to gas Condensation gas to liquid Precipitation Solid / Liquid Gravity Gravity Gravity

46. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Solid / Liquid

47. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Groundwater Solid / Liquid

48. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Groundwater Solid / Liquid

49. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Solid / Liquid

50. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Solid / Liquid

51. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid

52. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

53. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration At first this diagram looked outdated, but it has grown on me… Opinions?

54. Which one is better?

55. Which two have been switched?

56. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Evapotranspiration Solid / Liquid

57. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

58. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

59. Which two have been switched?

60. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

61. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

62. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

63. Which two have been switched?

64. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

65. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

66. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

67. Which two have been switched?

68. Which two have been switched?

69. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

70. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

71. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

72. Which two have been switched?

73. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

74. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

75. Evaporation liquid to gas Condensation gas to liquid Precipitation Percolation Infiltration Aquifer Recharge Groundwater Well Surface Run-off Solid / Liquid Transpiration

76. Evaporation: Substance changes from a liquid state to gas state (requires energy). Copyright © 2024 SlideSpark LLC

77. Evaporation: Substance changes from a liquid state to gas state (requires energy). Copyright © 2024 SlideSpark LLC Driven by the

78. Evaporation: Substance changes from a liquid state to gas state (requires energy). Copyright © 2024 SlideSpark LLC Driven by the Sun

79. We usually think about oceans, but clouds also evaporate. Copyright © 2024 SlideSpark LLC

80. Condensation: Water vapor (gas) turns back to a liquid. (Energy needs to be removed) - Copyright © 2024 SlideSpark LLC

81. Condensation: Water vapor (gas) turns back to a liquid. (Energy needs to be removed) Cloud formation. Copyright © 2024 SlideSpark LLC

82. Activity! Condensation Teacher provides ice cold can of soda to table groups and students record temperature. Students should observe each can for evidence of condensation.

83. Why did condensation droplets form on the cold soda can? Where did the water come from

84. Activity! Condensation Questions. Why did condensation droplets form on the cold soda can? Where did the water come from?

85. Activity! Condensation Questions. Why did condensation droplets form on the cold soda can? Where did the water come from? Condensation formed on the cold soda can because water vapor near the soda can turned from a gas to a liquid.

86. Cloud formation occurs with water vapor and condensation nuclei. Copyright © 2024 SlideSpark LLC

87. Precipitation: Water that is so heavy it falls as liquid / solid. Copyright © 2024 SlideSpark LLC

88. Precipitation: Water that is so heavy it falls as liquid / solid. Copyright © 2024 SlideSpark LLC Gravity Gravity

89. Precipitation can also be a solid in the form of snow, hail, or ice pellets. Copyright © 2024 SlideSpark LLC

90. Link! Water Cycle Flash Animation Tour http://www.epa.gov/safewater/kids/flash/flash_watercycle.html

91. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 10 cm from the top. (Have teacher cut in advance) Fill bottle with very warm water about 10 cm. Add food coloring if you wish. Slide cup into the bottle to just above the warm water with cap on. Fill top bottle (cup) with ice cubes. Do not overfill. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Visual on next slide.

92. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher,

93. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher,

94. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher, Next fill bottle with very warm water and food coloring.

95. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher, Next fill bottle with very warm water and food coloring.

96. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher, then flipped, Next fill bottle with very warm water and food coloring.

97. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher, then flipped, and filled with ice cubes by students. Next fill bottle with very warm water and food coloring.

98. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher, then flipped, and filled with ice cubes by students. Next fill bottle with very warm water and food coloring. Observe water cycle and record observations

99. Activity! Water Cycle in a Bottle. Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Soda bottle cut by teacher, then flipped, and filled with ice cubes by students. Next fill bottle with very warm water and food coloring. Observe water cycle and record observations Strange kind of creepy video of water molecules in the hydrologic cycle as we wait (Optional 2 min) https://www.youtube.com/watch?v=StPobH5ODTw

100. Activity! Water Cycle on the window? Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation)

101. Activity! Water Cycle on the window? Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation)

102. Activity! Water Cycle on the window? Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Tape Clear Bag Water + Blue Color

103. Activity! Water Cycle on the window? Each group needs a standard 2 liter clear soda bottle cut in half about 4 inches from the top. (Have teacher cut in advance) Fill bottle with very warm water. Invert top of bottle with cap and fill with ice cubes. Slide cup with ice into the bottle to just above the warm water. Watch for evaporation, condensation, and the droplets falling back down to the warm water (precipitation) Tape Clear Bag Water + Blue Color Record terms on bag with Sharpie

104. Activity! Stranded on a Desert Island.

105. Activity! Stranded on a Desert Island. You and your group must use the materials provided (and the water cycle) to turn salt water into freshwater over the next several days in order to survive. Use the sun as the energy source. Each group gets a clear plastic box, glass cup, plastic wrap, marbles / pebbles, salt water mixed with sand, and a bungee cord / large elastic. Visual of materials on next slide. Video Link of set-up. https://www.youtube.com/watch?v=4sqRvUzqDCE

106. Called a Solar Still

107. Materials for the set-up. Saltwater and Sand Cup Marbles Elastic Plastic wrap

108. Materials for the set-up. Saltwater and Sand Cup Marbles Elastic Plastic wrap

109. Below is the correct set-up to use the water cycle to turn salt water into freshwater.

110. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Driven by the Sun

111. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Saltwater evaporates from sun energy into vapor.

112. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Saltwater evaporates from sun energy into vapor.

113. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Saltwater evaporates from sun energy into vapor.

114. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Saltwater evaporates from sun energy into vapor Leaves salt behind.

115. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Colder temperatures on edge of container cause…

116. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Colder temperatures on edge of container cause… Condensation

117. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Water adheres to the plastic wrap, travels down and falls into the cup as freshwater…

118. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Water adheres to the plastic wrap, travels down and falls into the cup as freshwater… Precipitation

119. Below is the correct set-up to use the water cycle to turn salt water into freshwater. Water adheres to the plastic wrap, travels down and falls into the cup as freshwater… Precipitation Needs lots of Solar Energy to Work!

120. Evaporates Evaporates

121. Evaporates Evaporates Condenses as fresh water Condenses as fresh water

122. Evaporates Evaporates Condenses as fresh water Condenses as fresh water Pools here

123. Evaporates Evaporates Condenses as fresh water Condenses as fresh water Pools here Black pad absorbs More light, and Radiates more heat

124. The Water Cycle Part 2 Lesson 2