Properties of Water
The Water Cycle
Water and living things
Water on Earth
Vocab
100
2 hydrogen atoms and 1 oxygen atom.
What makes up a water molecule?
100
The continuous process by which water moves through the living and nonliving parts of the environment.
What is the water cycle?
100
Another way that living things use water is as a home.
What is habitat?
100
71% of the Earth.
What percent of the Earth is water?
100
Amount of heat needed to increase the temperature of a certain mass of substance by 1 degree Celsius.
What is specific heat?
200
It allows water to move through materials with pores.
What is capillary action.
200
Condensation
What is the mid-way point in the water cycle?
200
2/3 water.
What percent water is the human body made of?
200
97% of earths water
What is salt water?
200
The amount of heat needed to increase the temperature of a certain mass of substance by 1 degree Celsius.
What is the definition of specific heat?
300
Mixture that forms when one substance disolves another.
What is a solution?
300
Evaporation
What is the first step in the water cycle?
300
House hold uses, agriculture, industry, transportation, and recreation.
What do people use water for in every day lives?
300
Ice at 76%, shallow groundwater 12%, Deep groundwater 11%.
What are three largest fresh water reserves?
300
Water that falls to earth as rain, snow, sleet, or hail.
What is the definition of precipitation?
400
When water freezes it becomes not as condensed as when it was a liquid.
When water freezes why does it float?
400
Evaporation, precipitation and condensation.
What are the processes that occur during the water cycle?
400
It helps them reproduce, grow, and carry out other important process.
Why is water essential for living things?
400
.34% freshwater
What is the percent of fresh water is in the lakes and rivers?
400
The tightness across the surface of water that is caused by the polar molecules pulling on each other.
What is Surface Tension?
500
The positive hydrogen ends of one water molecule attract the negative oxygen ends of nearby water molecules.
Why water molecules tend to stick together?
500
Runoff into the ocean.
What is the last step before the water cycle restarts?
500
They both consist of mainly water.
What do humans and apples have in common?
500
Water vapor .037%
What is the lowest amount of fresh water on the planet and its percent?
500
A molecule that has electrically charged areas.
What is a polar molecule?
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