Show:
abiotic factors
cycles of matter 1
cycles of matter 2
energy
energy in ecosystems
100
all living and nonliving things in a given area are part of the _________-
What is the ecosystem.
100
List the three key events of the water cycle.
What is evaporation, condensation, precipitation
100
This element can enter the atmosphere when fossil fuels are burned.
What is Carbon?
100
almost all energy can be traced back to the _____
What is Sun?
100
List 3 different types of consumers.
What is herbivore, carnivore, omnivore, detritivore
200
This describes average weather over a given period of time.
What is climate?
200
This element is a key part of DNA and proteins, which is important for all living things.
What is Nitrogen?
200
Carbon dioxide is a _________ gas.
What is a "greenhouse" gas?
200
a series of reactions that uses sunlight to make food is _______
What is photosynthesis?
200
What do we detritivores eat?
What is the remains of other organisms?
300
The layer of gases surrounding earth that is mostly nitrogen and oxygen is?
What is the atmosphere?
300
The process that changes atmospheric nitrogen into nitrogen compounds that are usable by living things is called:
What is nitrogen fixation?
300
Photosynthesis plays a key role in the _________ cycle.
What is oxygen cycle?
300
The process when producers use chemical energy to make food is known as _________
What is chemosynthesis?
300
A model to show how energy flows through an ecosystem is a___________
What is food chain?
400
All life on earth requires __________
What is water?
400
Up to 50% of this element is believed to be released into the atmosphere by phytoplankton.
What is Oxygen?
400
Lightning plays a key role in the _________ cycle.
What is the nitrogen cycle?
400
organisms that make their own food are known as ________
What are producers?
400
A ________________ shows how many organisms are connected within an ecosystem.
What is a food web?
500
a home for many organisms including insects, bacteria, and fungi.
What is soil?
500
All organisms contain __________. Some organisms get it from the air. Some organisms get it from eating plants.
What is Carbon?
500
___________ help return nitrogen to the soil for plants to use.
What is bacteria.
500
The ____ of ___________ of _______ states that energy can not be created or destroyed it only changes form.
What is the law of conservation of energy?
500
As you move through trophic levels only about __% of energy is available at the next level.
What is 10%.