Freshwater Ecosystem

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-ESS2-4

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

Match the following zones with the right animals

• Plankton

• Limnetic zone

• Pond Snail

• Littoral zone

• Bloodworms

• Limnetic zone

• Yellow Perch

• Littoral zone

• Green frog

• Benthic zone

What do freshwater inland wetlands do?

• Filter waste and pollution

• Limit flooding and erosion

• Maintain biodiversity

• Provide food and recreation

• All of the above

Tags

NGSS.MS-LS2-5

Streams join together to form...

• Lakes

• Creeks

• Wetlands

• Rivers

Freshwater standing ecosystem Less dissolved oxygen but more plant-life than in flowing systems. Located near the shore. The water is shallow, warm with much plant life such as cattails, reeds, & waterlilies rooted in the nutrient rich mud.

• littoral zone of lake/pond

• open waters of lake/pond

• benthic zone of lake/pond

• downstream part of river

• marsh

Tags

NGSS.MS-LS2-3

Freshwater flowing ecosystem wider and deeper then headwaters flow of water slower then headwater more plants and animals but less than in standing systems.

• littoral zone of lake/pond

• open waters of lake/pond

• benthic zone of lake/pond

• downstream part of river

• marsh

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4