LH06110492
PHYSICAL GEOGRAPHY II: WHY IS THE OCEAN SALTY
All water, even rainwater contains dissolved chemicals which scientists call "Salts." These salts eventually wash down into rivers and streams and eventually find their way into oceans and seas.Subjects covered include: The origin of the sea. The sources of salt. The components of sea water. The salinity of the sea and its variability. How sea life affects sea waters composition.
DVD
Grades 9-12
23 minutes
2006
Requirement
:
Qty :
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100