Fresh water ecosystems

Presentation

•

Science

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8th Grade

•

Easy

•

NGSS

MS-LS2-3, MS-LS2-1, MS-LS2-4

Standards-aligned

Rachel Harwell

Used 18+ times

FREE Resource

10 Slides • 2 Questions

Fresh water ecosystems

Key Vocabulary: ecosystems,

eutrophication, hypoxia, bioindicators, point source pollution, non-point source pollution, biotic, abiotic

Fresh water ecosystems

a biological (Biotic=living) community of interacting organisms and their physical environment (abiotic=non living).

**take note of the abiotic factors we have been talking about recently

Ecosistemas de agua dulce

una comunidad biológica (biótica = viva) de organismos que interactúan y su entorno físico (abiótico = no vivo).

** toma nota de los factores abióticos de los que hemos estado hablando recientemente

Open Ended

What abiotic factors did you notice from the video that we have learned about recently

Type response here

Lets tie it all together

freshwater scarcity
Catawba River Basin- Fresh water ecosystems
Nutrient pollution- Eutrophication & Hypoxia (NO OXYGEN)
Human impact and what we can do

Freshwater in the Catawba river basin

streams
rivers
ponds
lakes
swamps

Scarcity

We know that in some areas we use water faster than it can be replenished. We also know that some of the scarcity is due to the condition of the water

Nutrient pollution

excess nutrients get into the water
traceable pollution is known as point source pollution
untraceable pollution is called nonpoint source pollution

contaminación de nutrientes

el exceso de nutrientes entra en el agua
La contaminación rastreable se conoce como contaminación de fuente puntual.
La contaminación imposible de rastrear se llama contaminación de fuente difusa.

Bio indicators

Indicadores biológicos

Open Ended

If a body of water is hypoxic (low or no oxygen) what do you think will happen to the bio indicators in that body of water?

Type response here

Fresh water ecosystems

Key Vocabulary: ecosystems,

eutrophication, hypoxia, bioindicators, point source pollution, non-point source pollution, biotic, abiotic

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