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Science
Ecosystem
13
Science
6th Grade
06/10/2013

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Cards

Term
What is the main source of oxygen in the ecosystem experiment
Definition
The plants which give off oxygen as part of photosynthesis
Term
List the control variables in the ecosystem experiment
Definition
same amount of gravel and water that was the same temp.
Term
what is the experimental variable in the ecosystem experiment
Definition
adding pollution to one of the ecocolunms to see how it has affected the ecosystem
Term
What type of pollution is affecting the lakes in the adirondacks? where is it coming from? how?
Definition
It is acid rain. It comes from burning fossil fuels in factories and cars. The pollutant goes into the air, then falls back to earth when there is precipitation
Term
why is bacteria important in an ecosystem?
Definition
It acts as a decomposer, breaking down dead plants and animals and turning them into nutrients in the soil
Term
What is an autotroph? Give an example
Definition
an autotroph is an organism that makes its own food Ex: algea,green plants
Term
What is a heterotroph? Give an example
Definition
a heterotroph is an organism that must get its own food by eating other living things Ex: cow, snake,frog
Term
describe what abiotic means. Give an example
Definition
a non-living part of an ecosystem
Ex: water, rocks
Term
describe what biotic means. Give an example
Definition
Living things that are part of an ecosystem Ex: bacteria, rat
Term
What is the purpose of stream monitoring?
Definition
to find out if the stream is polluted or not by looking at what living things are surviving in it
Term
Which organism in this food chain is the producer?
GRASS > MOSQUITO > FROG > SNAKE
Definition
GRASS
Term
What is a dependent relationship? describe one in the aquarium or terrarium
Definition
a one way relationship where one member of an ecosystem depends on another for survival FISH > WATER
Term
what is an interdependent relationship? Describe one in aquarium or terrarium
Definition
when two members of an ecosystem both depend on each other for survival

FISH > ELODEA
ELODEA > FISH
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