Paxi - The water cycle — Transcript

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1. 0:00[Music]
2. 0:09oh
3. 0:10nothing beats a cold glass of water on a
4. 0:13hot day
5. 0:16i'm paxy your favorite space explorer
6. 0:20and today i will tell you all about the
7. 0:22water cycle
8. 0:24did you know that the water i am
9. 0:26drinking is the same water that
10. 0:28dinosaurs drank over 200 million years
11. 0:31ago
12. 0:32[Music]
13. 0:34and the same water that you will be
14. 0:36drinking 50 years from now
15. 0:39as you know every living thing on earth
16. 0:42needs water to survive
17. 0:44plants
18. 0:47trees
19. 0:49animals
20. 0:51and of course humans
21. 0:54the earth only has a certain amount of
22. 0:56water and it's the same today as it was
23. 0:59four billion years ago
24. 1:02it travels around and around and around
25. 1:08this is called the water cycle it's
26. 1:11mother nature's clever way of recycling
27. 1:13its water come i'll show you how
28. 1:19when the sun heats the earth it causes
29. 1:22the temperature of water in rivers lakes
30. 1:25and oceans to rise
31. 1:28when this happens
32. 1:30some of the water evaporates into the
33. 1:32air
34. 1:33becoming a gas called water vapor
35. 1:37this is called evaporation
36. 1:40as the water vapor moves up into the air
37. 1:43it becomes cold and turns back into
38. 1:46liquid droplets
39. 1:48that's how clouds are formed
40. 1:50this process is called condensation
41. 1:58when a lot of water has condensed and
42. 2:00the air cannot hold so many water
43. 2:02droplets anymore the water falls back to
44. 2:05earth
45. 2:07it can do this in different ways
46. 2:09rain
47. 2:10hail
48. 2:12sleet
49. 2:13or snow
50. 2:16this is what we call precipitation
51. 2:19which is not always very nice
52. 2:22especially when you want to play outside
53. 2:26all the water that falls back to earth
54. 2:28will be collected in different ways
55. 2:31this is called collection
56. 2:34water that falls into the oceans lakes
57. 2:37and rivers
58. 2:38will evaporate again and begin a new
59. 2:40cycle
60. 2:44water that falls on land soaks it and
61. 2:47becomes groundwater that plants animals
62. 2:50and humans use to drink
63. 2:52water that falls on vegetation
64. 2:54evaporates again through the leaves of
65. 2:56the plants
66. 2:59and do you know what happens to water
67. 3:01that falls on glaciers as snow
68. 3:04some of it freezes and keeps the glacier
69. 3:07alive
70. 3:08and some of it becomes liquid with the
71. 3:10heat of the sun and feeds rivers
72. 3:14cool isn't it
73. 3:15wherever the water falls it keeps on
74. 3:18recycling itself over and over and over
75. 3:21again
76. 3:23your planet really is amazing
77. 3:27so
78. 3:28today we learned that
79. 3:30every living thing needs water to
80. 3:32survive water on earth has been the same
81. 3:35for four billion years water evaporates
82. 3:39forms clouds and then falls back to
83. 3:41earth
84. 3:43it's collected into oceans lakes and
85. 3:46rivers
86. 3:47and it keeps on recycling itself over
87. 3:51and over and over again
88. 3:54bye-bye
89. 3:55see you soon for our next adventure
90. 3:58through the wonderful universe