Phosphorus Cycle
Nitrogen Cycle
Carbon Cycle
Water Cycle
RANDOM!
100
Phosphorus is important to us because they help form parts of life-sustaining molecules. What are the molecules?
What is DNA/RNA?
100
There are several forms of nitrogen. Name at least two.
What are nitrates/nitrites/nitrogen gas/ammonia?
100
Carbon is important to living things because of this reason.
What is carbon makes up who we are? The large molecules we are made of consists of chains of carbon!
100
Water is important to living things for these reasons.
What is water is required for survival? Water allows for runoffs to happen. This transports nutrients from one area to another.
100
DOUBLE POINTS: Living things need nutrients to grow and carry out essential life functions. These are examples of life functions. (Name at least two).
What is reproduction, respiration, excretion, growth, homeostasis?
200
Unlike carbon, oxygen and nitrogen, phosphorus does not enter the atmosphere. Phosphorus remains mostly elsewhere. Where?
What is on land in rock and soil minerals and in ocean sediments?
200
All organisms require nitrogen to build this big molecule.
What are proteins?
200
These are human activities that are increasing the amount of CO2 in our atmosphere.
What are mining, the burning of fossil fuels, cutting and burning of forests?
200
This is the process by which water changes from liquid to water vapor.
What is evaporation? (transpiration is also acceptable.)
200
DOUBLE POINTS: How is the way matter flowing through an ecosystem different from how energy flows through an ecosystem?
Energy flows one way: from producers to consumers. Matter moves through the biosphere, and in many different ways, through the water, carbon, nitrogen and phosphorus cycles.
300
How do we, humans, get phosphorus?
What is by feeding on producers and other organisms?
300
Usable nitrogen is scarce (rare). This is because 78% of the nitrogen is not usable and it is in this form. a) gas b) liquid c) solid
What is gas? Nitrogen gas cannot be directly used by animals or plants.
300
There is one way that carbon dioxide gas can be used. One way is during a process where producers (such as plants) absorb carbon dioxide to create sugars.
What is photosynthesis?
300
This is when water vapor turns into tiny water droplets. (Gas to liquid). Think of a cold drink and the water droplets that form on the cup.
What is condensation?
300
Ecologists are so interested at the rate of how much organic matter is created by producers. This is the rate at which energy is made by producers! What is this called?
What is primary productivity?
400
Phosphorus makes up DNA and RNA. DNA and RNA are important for this reason.
What is DNA and RNA are instructions on how cells should function?
400
This process is when nitrogen gas is fixed into ammonia (NH3). This process is done by bacteria.
What is bacterial nitrogen fixation?
400
These are natural ways carbon dioxide is released into the atmosphere. Name at least two.
What are respiration, volcanic activities, decomposition of plants and animals?
400
This is when water evaporates from leaves of plants.
What is transpiration?
400
This is one of the vocabulary words. The definition is: when matter such as carbon, oxygen, nitrogen and phosphorus are cycled through the biosphere.
What is biogeochemical cycles?
500
When excess phosphorus (due to fertilizers) is carried by runoffs to a lake, algal bloom occurs. When algae dies, what organism decomposes the algae and use up a lot of oxygen?
What is bacteria?
500
This process is also performed by bacteria. During this process the bacteria converts nitrates/nitrites into nitrogen gas.
What is denitrification?
500
This is how animals and marine animals get carbon in their bodies.
What is through feeding of producers such as plants/algae?
500
This happens to algae when runoff from precipitation carries excess nutrients into water sources.
What is algal bloom?
500
When an ecosystem is limited by a single nutrient that is rare or cycles slowly, that nutrient is called a ____________ nutrient.
What is limiting nutrient?
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