Oceans and seas
What are oceans and seas like?
Oceans and seas are large bodies of salt water
What are rivers like?
A river is a large, flowing body of fresh water.
When does river pollution happen?
When harmful substances and plastics enter the river
Where else can you find freshwater?
Any of the following;
lakes, groundwater, ice
What is the first step in the drinking water cycle?
Fresh water from rivers is collected in reservoirs.
How are waves formed?
Waves are formed by wind blowing over the surface of the sea.
Are rivers salt or fresh water?
Fresh water
What changes the river flow?
The seasons
What is a lake?
A lake is a large body of water that is surrounded by land
What is the second step in the drinking water cycle?
The water goes to a water treatment plant.
Different processes clean the water to make it safe to drink.
What are tides?
Tides are the regular rise and fall of sea levels
Do rivers start in high or low areas?
High areas
How do we benefit from rivers?
Any of the following;
Build reservoirs,
Transportation,
Leisure activities.
Where is most of the fresh water on Earth found?
Ice in the North and South poles
What is the third step in the drinking water cycle?
Drinking water goes through pipes to our homes.
What living things live in oceans and seas?
Any of the following;
Algae, plants, animals (fish, molluscs and corals, marine mammals, like dolphins and whales)
What is a tributary?
A river that flows into a larger river
What is the course of a river?
the route the river takes from its source to the coast.
Where is most liquid fresh water found?
Groundwater; underground in aquifers and in underground rivers.
What are the fourth and fifth steps in the drinking water cycle?
4, We use drinking water at home
5, Waste water is collected from our homes through a sewerage system.
How do people benefit from oceans and seas?
Any of the following;
Food by fishing, extract salt, extract petroleum, transportation, wind/tide/wave energy, leisure activities.
What is a channel?
Channel is the area of land that contains the flowing water of a river
What are the three types of river courses?
Lower, middle and upper.
Where does groundwater come from?
Mainly from precipitation
What are the last two steps of the drinking water cycle?
6, A wastewater treatment plant cleans the dirty water.
7, Clean water flows back into the river or ocean.