Type
Crossword
Description

This crossword contains the following questions and answers:

All organisms need ___________ to build proteins. Nitrogen
The only organisms that can fix atmospheric nitrogen into chemical compouds . Nitrogen-fixing bacteria
A process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms. Nitrogen cycle
What type of plant does nitrogen-fixing bacteria live on? Legumes
What does bacteria use to produce nitrogen-containing compounds such as nitrates? sugars
Where do plants that do not have nitrogen-fixing bacteria in their roots get their nitrogen from? Soil
When animals eat plants or other animals to get nitrogen, that is an example of __________. usable nitrogen
In the nitrogen cycle, nitrogen moves between living things and the ______________. Atmosphere
__________ breaks down wastes and return the nitrogen that these wastes contain to the soil. Decomposers
Nitrogen makes up _______________ percent of the gases in the atmosphere. seventy eight

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Biogeochemical Cycles Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

Our atmosphere contains 78% free _________________________. Nitrogen
Animals need nitrogen to produce ______________________. Proteins
What molecule is produced when nitrogen is fixed? Ammonia
Animals get nitrogen into their systems by eating _______________. Plants
Large organic molecule containing nitrogen that contains your genetic information. DNA
Prokaryote responsible for "fixing" nitrogen. Bacteria
_________________________ occurs when fertilizer runoff causes excess algae and water weeds. Eutrophication
Process where water "evaporates" from plants. Transpiration
What "powers" the water cycle? Sun
Rain, snow, sleet, or hail. Precipitation
The downward entry of water into the soil or rock surface. Infiltration
Process by which water changes from a liquid to a gas. Evaporation
Oats, peas, beans, corn Legumes
Helps plants to grow. Fertilizer
Bacteria that break down organic matter. Decomposers
Process by which water vapor turns into liquid water. Condensation

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The Nitrogen Cycle Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

What is 78% of the air made of? Nitrogen
What do plants use nitrogen to make? Protein
One way for animals to get nitrogen compounds in their systems is? Consumption
How do plants get the nitrogen they need? Soil
What do farmers add to the soil to add more nitorgen into the soil? Fertilizer
Step to make nitrogen useful to plants Fixation
the process of ammonium getting changed into nitrates by bacteria Nitrification
How plants get nitrogen Assimilation
the process of decomposers turning the nitrogen back into ammonium ammonificaction
the process of extra nitrogen getting released into the air Denitrification

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Ecosystems Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

The nonliving parts of an ecosystem Abiotic Factor
A predator that is at the top of a food chain and that is not preyed upon by any other animal Apex Predator
A living part of an ecosystem Biotic Factor
A relationship between two species in which one species benefits and the other is neither helped or harmed Commensalism
An interaction that occurs when organisms try to get the same resources Competition
All the populations of organisms in an ecosystem Community
An organism that obtains energy by feeding on other organisms Consumer
A helpful interaction among organisms living in a limited area that aids each organism's survival Cooperation
An organsim that gets energy by breaking down dead organisms and the wastes of living things Decomposer
The process in which fixed nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere Denitrification
All the living and nonliving parts of an environment as well as the ineractions among them Ecosystem
An organism that a parasite lives in or on Host
An environmental factor that prevents a population from increasing Limiting Factor
A symbiotic relationship between two organisms in which both organisms benefit Mutualism
An organism's role in its environment Niche
The process that converts nitrogen in the atmosphere into compounds in the soil that are useful to a varity of organisms Nitrogen Fixation
An organism that lives in or on another organism and benefits at the other organism's expense Parasite
A symbiotic relationship in which one organism benefits and the other is harmed Parasitism
A process by which plants use the sun's energy to make food Photosynthesis
A group of organisms of the same species living in the same place Population
A relationship in which one animal hunts, kills and eats another animal Predation
An organism that eats producers Primary Comsumer
An organism in a food web or food chain that makes its own food Producer
A close relationship between two species that benefits at least one of the species (3 types-mutualism, commensalism, parasitism) Symbiosis
A feeding level in an ecosystem Trophic Level

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Nitrogen Cycle Word Search

Type
Word Search
Description

This word search contains the following answers:

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teaching
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78 percent
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fish
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carnivores
nitrification
assimilation
birds
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decay
denitrification
ammonification
soil nitrates
nitrogen cycle

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Nutrient cycles Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

how many stages are there in the nitrogen cycle? FOUR
what can be used to increase nitrate levels in soil? fertilisers
How are nitrate ions absorbed by the plant? active transport
what is produced by dentrification? Nitrogen
what type of reaction is the conversion of ammonium ions to nitrate ions? Oxidation
which micro-organisms release ammonia? saprobiotic
What type of relationship exists between host plants and mycorrhizae bacteria? mutualistic
How are phosphates transferred from plants to animals? consumption
what process can occur due to overuse of fertilisers? eutrophication
where are nitrogen fixing bacteria found in legumes? root nodules

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Nitrogen Cycle Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

A chemical element atomic number is 7 and symbol is N Nitrogen
The conversion of ammonium to nitrate Nitrifying
N03 Nitrate
The envelope of gases surrounding the earth or another planet Atmosphere
The state or process of rotting; decay Decomposition
NH4+ Ammonium
Nitrogen fixing monerans in __________ root nodules (#7 in N-cycle) legume
FBI Detritivores
Organisms in the soil involved in every step of the nitrogen cycle. Bacteria
Organisms such as bacteria or fungi Decomposers
Process by which nitrogen in the Earth's atmosphere is converted into a compound in the soil by bacteria that live in the root nodules of certain plant legumes Nitrogen fixation

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Nitrogen Cycle Crossword Puzzle

Type
Crossword
Description

This crossword contains the following questions and answers:

step to make nitrogen useful to plants nitrogen fixation
What do farmers add to the soil to make it more rich in nitrogen fertilizer
the process by which nitrates are converted to nitrogen gas denitrification
plants use nitrogen to make ___________ protein
the process of ammonium getting changed into nitrates by bacteria nitrification
how plants get nitrogen assimilation
the part of the plant that absorbs nutrients from the soil roots
bacteria that convert ammonia to nitrites and nitrites to nitrates nitrifying bacteria
the process by which the protein in faeces, dead plants or animals is converted to ammonia ammonification
organisms such as bacteria and fungi decomposers

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Photosynthesis Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugar and starches photosynthesis
organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer autotroph
the steps in photosynthesis that occur on the thylakoid membranes of the chloroplast and that convert solar energy to the chemical energy of ATP and NADPH, evolving oxygen in the process light reactions
a green pigment found in the chloroplasts of plants, algae, and some bacteria chlorophyll
an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic materials heterotroph
specialized ground tissue that makes up the bulk of most leaves; performs most of a plant's photosynthesis mesophyll
the second of two major stages in photosynthesis (following the light reactions), involving atmospheric CO2 fixation and reduction of the fixed carbon into carbohydrate. Calvin Cycle
a colored chemical compound that absorbs light, producing color pigment
A flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy. thylakoid
granum (grana) a stack of thylakoids in a chloroplast granum
The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water. stroma
large protein that uses energy from H+ ions to bind ADP and a phosphate group together to produce ATP ATP synthase
The second of two major stages in photosynthesis, involving atmospheric CO2 fixation and reduction of the fixed carbon into carbohydrate. These reactions are also called the Calvin Cycle dark reactions
is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. Cellular respiration
a compound composed of adenosine and three phosphate groups that supplies energy for many biochemical cellular processes by undergoing enzymatic hydrolysis. ATP

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nitrogen cycle Word Search

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Word Search
Description

This word search contains the following answers:

atmosphere
plants
ammonia
process
soil
decomposers
organism
ecosystem
cycle
waste
bacteria
fix
gas
nitrogen

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Carbon Cycle Crossword

Type
Crossword
Description

This crossword contains the following questions and answers:

An element that combines with oxygen and hydrogen to form the organic compounds that make up organisms Carbon
The trapping of reflected heat from the sun by the Earth's atmosphere. Greenhouse Effect
Burning of living things or fossil fuels that releases CO2 into the atmosphere Combustion
When animals consume other organisms with carbon (plants or animals) in order to grow and get energy Consumption
A type of consumer that feeds on dead plant or animal matter. Decomposers
Carbon rich matter from plants and animals that has been trapped in the Earth's crust and can be burned to release energy Fossils Fuels
The breakdown of food with the release of energy and carbon dioxide. Respiration
Green plants that produce food by photosynthesis Producers
Organisms that get their food from producers. Consumers
Molecule that contains Carbon Organic Molecule

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