Section One: Water on Earth Flashcards
All living things need ___ to carry out their body processes.
Water.
Water allows organisms to…
Break down food, grow, reproduce, and get and use materials they need from their environments.
Algae and plants use water, along with carbon dioxide and energy from the sun to…
Make own food, photosynthesis.
The place where an organism lives, and obtains all the things it needs to survive.
Habitat.
Whats the percent of Earths salt water?
97%
What is the percent of Earths fresh water?
3%
Of that percent two-thirds is what?
Frozen in huge masses.
What are the names are used for the different parts of the ocean?
Pacific, Indian, Arctic, Atlantic.
What is the largest ocean?
Pacific.
Which ocean is the second largest?
Atlantic.
What is the deepest ocean?
Indian.
Much of Earths fresh water is ________.
Frozen into sheets of ice.
Floating chunks of ice made of fresh water that break off of sheets of ice.
Icebergs.
Contains about 20% of all the water in the worlds freshwater lakes.
North America’s great lakes.
Water that fills the cracks and spaces in the underground soil and rock layers.
Groundwater.
The four main sources of fresh water.
Ice, groundwater, lakes, rivers.
Which freshwater source is most important to people.
Lakes and rivers.
Continuous process by which water moves from Earth’s surface to the atmosphere and back.
Water Cycle.
The process by which molecules at the surface of a liquid absorbs enough energy to change into a gas.
Evaporation.
Water is given off into the leaves as a water vapor in a process called..
Transpiration.
Water that falls to Earth as rain, hail, sleet, snow.
Precipitation.
What are the 4 examples of precipitation?
Hail, sleet, snow, rain.
What are the steps of the water cycle?
It turns into a gas. (evaporation)
The water is given off through the leaves. (transpiration)
It (condenses) rises to clouds.
It comes down as rain, hail, snow, or sleet. (precipitation)
