Science 7th Grade Chapter 2 (2.1 & 2.2) Energy Flow In Ecosystems & Cycles Of Ma

Science 7th Grade Chapter 2 (2. 1 & 2. 2) Energy Flow In Ecosystems & Cycles Of Ma tter
Created Nov 2, 2012
by cmarlee
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Side ASide B
Producer
An organism that can make its own food.  (like plants, algae, and some bacteria)(example:...
Consumer
An organism (as a member of an ecosystem) that obtains energy by feeding on other...
What are the 3 classifications of "consumers?" 
herbivores carnivores omnivores 
Herbivore
Consumers that eat only plants
Carnivore
Consumers that eat only animals.
Omnivore
consumers that eat both plants and animals.
Scavenger
a carnivore (eats only animals) that feeds on the bodies of dead organisms. 
 What are 2 examples of scavengers?
(examples are catfish and vultures) 
Decomposer 
These organisms break down wastes and dead oranisms and return the raw materials to the ecosystems. ...
Who are nature's recyclers?
Decomposers
What does evergy enter most ecosystems as?
sunlight (and then it is converted into food molecules by producers.)
The movement of energy through an ecosystem can be shown in diagrams called ____ ______ and...
food chains and food webs
food chain
A series of events in which one organism eats another and obtains energy.
How does. a food chain work?
You can follow a food chain in a diagram like the one on page 45.  The 1st organism...
What is a food web?
A food chain only shows 1 path of energy moving through an ecosystem, but organisms eat different...
Lavel the Water Cycle diagram
p 49 has an example
Label the Carbon & Oxygen Cycle diagram
p 51 has an example
Label the Nitrogen Cycle
page 52 has an example
Evaporation
The process by which  molecules of liquid water absorb energy and hcange to a gas. ...
Condensation
As water vapor rises higher in the atmosphere, it cools down.  The cooled vaport then...
Precipitation
Drops falling back to Earth -- rain, snow, sleet, or hail.  Most falls back into oceans...
Surface Runoff
Precipitation that falls onto land that does not soak into the soil, but instead runs of...
Carbon Cycle and Oxygen Cycle
These are the processes by which carbon and oxygen are recycled and they are linked. The CARBON...
Oxygen Cycle
Like the Carbon Cycle; oxygen cycles through ecosystem.  Producers (like trees) release...
Photosynthesis
The process of producers using the sun's energy to turn water and carbon dioxide into food...
Root Nodule
 the bumps on roots have bacteria that fix the free nitrogen into simple compounds
Root Nodule
 the bumps on roots have bacteria that fix the free nitrogen into simple compounds
Root Nodule
 the bumps on roots have bacteria that fix the free nitrogen into simple compounds
Root nodule
the bumps on roots that bacteria on fix free nitrogen into simple compounds
Nitrogen fixation
The process of changing free nitrogen into a usable form of nitrogen.  (Bacteria on...
Fixed nitrogen
Most organisms can only use nitrogen once it has been "fixed" or combined with other...
Free nitrogen
Nitrogen that is by itself.  Once it is combined with other elements to make a compound...
What are the 3 main energy roles organisms can have in a food web?  Give an example of...
Producers (trees) Consumers (caterpillars) Decomposers (bacteria or mushrooms)
What are the 4 types of consumers?  Give an example of each?
herbivores - caterpillars and deer carnivores - Lions and spiders omnivores - crows, bears,...
What is the major difference between a 1st level consumer and a 2nd level consumer?
The first-level consumers are herbavores and second-level consumers are omnivores or carnivores?
In which direction do arrows point in a food web?  (from what to what?)
The arrows point from a producer or lower level consumer to a higher level consumer?
Do food webs show interactions between member of a population OR a community?  Why?
A community I think because it takes many different populations to link in a food web.
In general, how many energy-flow pathways are shown in a food chain?  In a food web?
In general, ____ ??
Does MATTER (H2O, C & O, N) get re-used as it moves through an ecosystem, or does it run...
I think matter gets reused by one of the cycles.
How does CARBON move through the Carbon & Oxygen Cycle?  How does OXYGEN move through?
They are linked cycles where producers, consumers and decomposers all play a role in recycling...
What is the role of PLANTS (producers) in the ... a.  Nitrogen Cycle? b.  Carbon...
a.  plants in the Nitrogen Cycle have roots that fix free nitrogen into simple compounds,...
Why is it important that nitrogen is "fixed?"  What organisms require "fixed"...
Nitrogen has to be fixed because most organisms can only use "fixed" (combined) nitrogen.
Why is it important that nitrogen is "fixed?"  What organisms require "fixed"...
Nitrogen has to be fixed because most organisms can only use "fixed" (combined) nitrogen.
Why is it important that nitrogen is "fixed?"  What organisms require "fixed"...
Nitrogen has to be fixed because most organisms can only use "fixed" (combined) nitrogen.
Why is it important that nitrogen is "fixed?"  What organisms require "fixed"...
Nitrogen has to be fixed because most organisms can only use "fixed" (combined) nitrogen.
Why is it important that nitrogen is "fixed?" What organisms require "fixed"...
Nitrogen has to be fixed because most organisms can only use "fixed" (combined) nitrogen. 
Can you convert between units of the metric system?
x
Can you identify IV and DV from an experiment table?
x
Do you know where basic information is located in a data table?
x
Most important: Did you learn the material on the Haiku page?
x
Also most important:  Do you know that material on the 2.1 Notes Worksheet and the 2.2...
x
Did you read and understand the book section 2.1 and section 2.2 (they start on page 42)?
x
Did you review the Big Chunky Lab, 1st Quiz & First test?
x


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