A large body of salt water
ocean
About ________ of the surface of Earth is covered by oceans.
70 percent
People use different natural _______ from the ocean for food, energy, ad recreation.
resources
As _____ runs downhill, it picks up salt from dirt and rocks.
rain
Rivers carry this ______into the ocean.
salt
_______provides heat that evaporated fresh water from the ocean.
sunlight
_________pound on the rocks and sand, and undersea __________ erupt, adding salt to the ocean.
waves, volcanos
The concentration of salt in the ocean is about _________ which causes ocean water to taste salty
3.5 percent
Frozen ice sheets contain mother of the ________ on Earth
fresh water
Greenland and _____________have the only ice sheets in the world.
Antartica
Some fresh water is frozen in ________ , which are large bodies of ice that move slowly over land.
glaciers
Fresh water flows across Earth's surface in
rivers
Most _________ are small to medium-sized bodies of water that are surrounded by land and hold fresh water.
lakes
Describe the two kinds of water that cover three-fourths of Earth's surface.
The two kind of water that cover three-fourths of the Earth's surface is ocean water and fresh water.
The ocean covers 70% of the Earth's surface. People use lots of the ocean's natural resources. For example, people eat fish, shellfish, and seaweed, Peop
The three forms of water are
liquid state, solid state, gaseous state
When heat is taken away from liquid water, it changes into
solid water.
Evaporation happens when liquid water turns into
a gas
moving air is called ______ or ________.
wind or breeze
Cold air is more ______ than warm air.
dense
_________ form high in the sky, usually from ice crystals.
Cirrus Clouds
Drops of liquid water in __________are pulled down by their weight.
clouds
If the tempreature is ________ freezing, drops of water become solid, forming sleet, hail, or snow.
below
Snowflakes are formed when water vapor turns directly into solid _________.
ice crystals.
The __________ is the continuous movement of water between Earth's surface and the air.
watercycle
Describe the three steps that causes water to change during the water cycle.
Water vapor evaporates from the oceans and condenses into clouds. Water falls as precipitation and runs down to the ocean. From the ocean, it evaporates again.
aqueduct
a structure that carries large amounts of water to one place to a another
aquifer
an underground layer of rock,sand,or gravel that contains water
condensation
the process in witch matter changes state from gas to liquid
water cycle
the continous movement of water from a liquid state on the ground to a vapor state in the air and back again.
water shed
an area of land that drains into a specific river
resevoir
a man made lake that stores water for later
reclamation
the act if recycling or restoring some thing to a usable state
evaporation
the slow changing of a liquid into gas
conservation
the act or policy of saving or protecting somthing