World Water
What percentage of the Earth's water is fresh water?
3%
Why is the ocean salty?
Minerals, sodium and chloride wash into the rivers
What is a watershed?
Area of land where all water falls or drains into a common waterway
Another word for saline is ...
Salt water
Matter comes in three forms...
Solid liquid and gas
Where is most of the Earth's freshwater located?
Glaciers, lakes and ice caps
What is salination?
Salination is the process of increasing salt concentration in soil or water
Name two parts of a watershed
rivers, mountains, streams, ponds, ocean
What is the hydrosphere?
All the water in the world
What are two things that make the ocean salty?
Volcanos, minerals and rocks , rain water
Why is freshwater important for life?
Freshwater is essential for drinking, farming, ecosystem
Name one way that ocean water is affected by human activity.
Pollution from cities can introduce harmful substances into the ocean
What role do plants play in a watershed?
Plants help absorb water and reduce runoff, prevent erosion and filter pollutants
When it rains, which spheres are affected?
Atmosphere and hyrdosphere
Who is a hydrologist and what do they do?
studies the quality of water
What is an aquifer?
Water underground
What is salinity?
The amount of salt in the water
How does a watershed affect the quality of water in a river?
The health of a watershed influences the quality of the water, land use can degrade water quality too
Define erosion..
The breaking down of rocks or dirt from abrasive wind or water
What is climate?
The weather in a certain area
How does climate change affect freshwater resources?
Decreased rainfall, decreased glaciers, evaporation, less water
What is an example of a body of water that is not salty?
River or freshwater pond or lake
Why is it important to protect watersheds?
Protecting watersheds is crucial for maintaining clean water supply supporting the ecosystem.
What is a biosphere?
All the life within an ecosystem
Name two parts of the food chain
primary secondary