What is a lake?
A large hole in the ground filled with standing water. A lake has depth, and the sunlight doesn't reach the bottom.
LOW
Unhealthy ecosystem 😥
How does light affect aquatic life?
The fewer plants and less biodiversity, the less light there is
What is waterflow?
Water flow is the movement of water
What is erosion?
Erosion is when natural materials are worn away and transported by natural forces.
A large hole in the ground filled with standing water. A pond dosen't have depth as the sunlight reaches the bottom.
HIGH
Healthy Ecosystem
How does water clarity affect aquatic life?
The less matter in the water there is, the more sunlight can reach deeper into the water.
What is a headwater?
Where rivers begin in higher areas before coming down.
What is sediment?
Sediment is the process of materials settling, building up, and often compacting into rock over time.
What is a stream?
A stream is a fast-flowing, shallow, narrow waterway that moves downhill due to gravity.
DEFINE
How does Dissolved oxygen affect aquatic life?
The more oxygen there is in the water, the healthier the ecosystem.
What is the water table?
The water table is the upper zone of the saturated zone in the ground.
What is deposition?
Process where wind, water, or ice drops sediment as they lose energy, settling it onto a surface.
What is a river?
A river is a slow-flowing, deeper, wider waterway that moves downhill due to gravity.
What are the 3 lake zones?
01. Littoral Zone
02. Limnetic Zone
03. Profundal Zone
How does human impact change watersheds and water flow?
Humans pave the land, which stops the water from soaking in, causing more runoff
What is an aquifer?
An aquifer is a vital underground water source for people and ecosystems.
What are the effects of too much sediment?
Harms fish and habitats, decreases water depth, damages pumps and turbines.
What is a wetland?
A wetland is an ecosystem where water covers the land.
What can cause biodiversity loss? [Name the three main ones to get it!]
01. Loss of habit
02. Climate change
03. Pollution
04. Overexploitation
05. Intensification
How does pollution affect water movement and the quality?
It affects the natural water cycle, causing what little clean water we have to disappear.
What is a watershed [drainage basin]?
A watershed is the area of land where all water flows toward and collects into a body of water.
How can you reduce sediment?
Monitor sediment and pollution sources, plant vegetation to reduce erosion, and use barriers to control sediment.