Vocabulary 1
What is a system?
A system is a group of parts that work together to perform a specific task.
What is Condensation?
A measure of gas turns into a liquid
What is the freezing point of water?
0 degrees Celsius
What is salinity?
It is a measure of salt concentration in water.
What is water made of?
two hydrogen particles and one oxygen.
What is an ice cap?
A large covering of ice over an area of land.
What is deposition?
When a gas turns into a solid.
What is the boiling point of water?
100 degrees Celsius.
The average salinity of the earth's seawater is
3.5%
mention 2 ways we can conserve water
e.g. use a rain barrel, turn off taps when not in use, limit shower time, wash only full loads of laudry
What is a water table?
The boundary between the unsaturated zone and saturated zone.
What is Sublimation?
When a solid turns into a gas
What is bio remediation used for?
It is a fast and effective way to remove water contaminants at a low cost.
Why would someone want to remove the salt from water?
Saltwater is not drinkable for humans. It also cannot be used for watering plants.
Mention three reasons why water is important to life on earth?
e.g. - organisms need water for survival (stay hydrated)
- we need water for growing fruits and vegetables
- it is used for entertainment like sports, swimming
What is a glacier?
A slow moving mass of ice formed over hundreds of years as a result of snow accumulation.
What is an aquifer?
The zone beneath the water table that is saturated with water.
Mention two water contaminants and how they impact water quality
e.g. pathogens (harmful bacteria that can make humans.animals very sick), fertilizers (can cause cancer to fish and other aquatic species), sedimentation (debris from human activities can cloud up water and suffocate aquatic species).
Water with a high salt content is called
Brine water
True or false: water is a heat sink
True. Oceans can absorb a lot of heat from the sun yet their temperature remains fairly constant and they dont evaporate.
What is a watershed?
An area of land where all water collects into the same place.
what is bioremediation?
The process pf using microorganisms to break down hazardous materials in soil or water.
Name three factors that affect the level of a water table.
Surface topography, precipitation changes, pant growth, human activity
What is salt water useful for?
Naturally saline water like oceans and seas is necessary for many organisms to survive. Salt water can also be used to clean wounds, and is used for food preservation.
Describe the function and importance of Conservation Authorities in Ontario.
Conservation Authorities are nonprofit organisations that promote watershed management in a way that balances human, environmental, and economic needs.