Properties of Water and the Water Cycle
The sun causes water to _________, and gravity causes water to _________.
The sun causes water to CHANGE FROM A LIQUID TO A GAS (or EVAPORATE), and gravity causes water to FALL TO THE SURFACE AGAIN (or PRECIPITATE).
Which type of water usage is the most consumptive?
A) usage for livestock and agriculture
B) domestic usage
C) industrial usage
D) usage for recreational activities
A) usage for livestock and agriculture
(79% of water is used agriculturally, 12% is used domestically, and 9% is used industrially. Recreational activities such as kayaking are non-consumptive.)
What percent of Earth's water is freshwater?
2.5%
What is the difference between transpiration and evaporation?
Transpiration is when PLANTS RELEASE WATER VAPOUR.
Evaporation is when LIQUID WATER on a surface TURNS TO GAS.
How does water help humans cool down?
It helps us cool down through sweat. The release of water through sweat also releases heat.
Define the TWO types of treatment plants that clean water.
Water treatment plant: a place that cleans water before we drink it
Wastewater treatment plant: a place that cleans used water so it can be returned to the environment
True or false:
Deposition is when a gas changes to a solid.
Melting is when a solid changes to a liquid.
Sublimation is when a solid changes to a gas.
True!
What quality of water helps nutrients travel through plants?
Water's CAPILLARITY helps water and nutrients travel through the narrow tubes of plants.
True or false:
Surface water is largest reservoir of fresh water on Earth and glaciers are the scarcest.
False!
Surface water is the SCARCEST reservoir of fresh water on Earth and glaciers are the LARGEST.
Water is very adhesive. What THREE characteristics does water have because it is adhesive?
1) capillarity
2) the ability to withstand high pressure
3) surface tension
Correct the TWO errors in these sentences:
Ice is denser than water, which allows ice to float on water. Because ice floats, the water below the ice stays cold and allows life to continue during the winter.
Ice is LESS DENSE than water, which allows ice to float on water. Because ice floats, the water below the ice stays WARMER and allows life to continue during the winter.
How does the natural greenhouse effect help the Earth to have liquid water?
It reduces temperature changes and reduces extreme temperatures. (This prevents water from evaporating too much during the day and freezing at night.)