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Hydrosphere Vocabulary Review

Use the attached clues to complete the crossword puzzle.

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5.the level of magnesium and calcium in water
6.essential to life, but too much can cause algae and plankton to over produce
11.1.able to be maintained
12.a lake that stores water for human use
15.an area where ocean water sinks through cracks in the ocean floor, heating the water
16.measure of the average energy of motion of the particles of a substance
17.a land area that is covered with a shallow layer of water
20.combined force of attraction among water molecules and water molecules and another surface
22.the amount of heat needed to increase the temperature of a substance
23.bouyant force of an object is equal to the weight of the fluid displaced
25.the amount of dissolved salt in a water sample
26.a well in which water rises due to pressure within the aquifer
27.organisms that live on the bottom of the ocean
28.the degree of purity in the water
31.the production of light by living things
32.the process by which plants make their own food
35.an area where fresh water and salt water meet
36.a molecule that has electrically charged areas
38.tiny algae that float in water
39.tightness across the surface of a molecule
40.the change in state from a gas to a liquid
41.the process by which particles in a liquid clump together
44.water that falls to Earth as rain, snow, sleet or hail
47.the substance dissolved by the solvent
48.the introduction of harmful substances into the environment
51.the farming of aquatic organisms such as fish, crustaceans, molluscs and aquatic plants
54.the responsible planning and management of resources
56.a continuous range of mountains on the ocean floor
57.the top of the saturated zone
58.water easily passes through
59.removal of salt from water
61.a substance that causes the pollution
62.upward force exerted by a fluid
64.a rapid increase in the population of algae in an aquatic system
65.having the ability to float
68.mass divided volume
69.the source of the pollution is known
71.Nitrate is a compound that is formed naturally when nitrogen combines with oxygen or ozone; souces: fertilizer, soil, human waste
72.a large stream of moving water
73.a deep canyon in the ocean floor
74.the place where an organism lives
75.environmental protection agency
1.makes up 3% of Earth's water
2.filled up; holding as much as possible
3.the land area that supplies water to a river system
4.continuous process by which water moves from Earth's surface - atmosphere - back
7.the measure of how basic or acidic a substance is
8.a ridge of land that separates one watershed from another
9.a gently sloping area that extends outward toward the edge of a continent
10.a solvent that has the ability to dissolve many substances
13.water does not easily pass
14.a steep incline of the ocean floor leading down from the shelf
18.the source of the pollution is not known
19.process by which nutrients in a lake buildup over time causing algae growth
21.the existence of a wide variety of plant and animal species in their natural environments
24.plants give off water vapor through their leaves
26.a smooth nearly flat region of the deep ocean floor
29.movement of cold water upward from the deep ocean
30.the smaller streams that feed into a main river
33.water that fills the cracks and spaces in underground rock layers
34.uses sound to calculate the distance of an object
37.the amount of one material in a certain amount of another material
42.an organism that reveals the presence of the pollutants by the occurrence of measurable symptoms
43.water is attracted to itself
45.temperature and precipitation of an area over a long period of time
46.the substance that does the dissolving
49.a substance that enables plants and algae to grow (phosphate/nitrates)
50.process of passing water through a screen to removal unwanted particles
52.process by which a liquid changes into a gas
53.water is attracted to other substances
55.a mixture where one substance is dissolved into another
60.the clarity of the water
63.an underground layer of rock that holds water
66.feeding relationship in a habitat
67.free swimming organisms that move through the water column
70.object-locating system

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