Freshwater Ecosystems

The two freshwater life zones are...

• Standing water and flowing water

• Salty water and clean water

• Hot water and cold water

• Wet water and dry water

Which is an example of standing water?

• Lakes

• Streams

• Creeks

• Rivers

Which is an example of flowing water?

• Ponds

• Lakes

• Inland Wetlands

• Rivers

Tags

NGSS.MS-ESS2-4

What is runoff?

• Underground water that flows into caves

• Surface water that flows into lakes, ponds and wetlands

• Surface water that flows into caves

• Underground water that runs off to the surface

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What can freshwater systems provide?

• Nutrient cycling

• Climate moderation

• Habitat

• Waste treatment

• All of the above

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-5

What can freshwater systems provide?

• Food

• Drinking water

• Hydroelectricity

• Recreation

• All of the above

Tags

NGSS.MS-ESS2-4

Oligotrophic lakes are...

• Typically shallow and murky with a large supply of nutrients

• Typically shallow and clear with a small supply of nutrients

• Typically deep and steep sided with a small nutrient supply

• Typically shallow and steep sided with a large nutrient supply

Eutrophic lakes are...

• Typically shallow and murky with a large supply of nutrients

• Typically deep and murky with a small supply of nutrients

• Typically deep and steep sided with a small nutrient supply

• Typically shallow and steep sided with a small nutrient supply

Which animal can be found at a lake?

• 
• 
• 
• 

Tags

NGSS.3-LS4-3

Match the following zones with the right animals

• Pond Snail

• Benthic zone

• Green frog

• Limnetic zone

• Bloodworms

• Littoral zone

• Plankton

• Limnetic zone

• Yellow Perch

• Littoral zone