Carbon Cycle
Nitrogen Cycle
Water Cycle
Biodiversity
Biomes
100
This element is one of the buildings blocks of life.
What is carbon?
100
This organism break down nitrogen.
What is Bacteria
100
This substance helps keep bodily functions in check.
What is water?
100
This substance contains a specific trait that can be inherited by an organism's offspring.
What is a gene?
100
A wide verity of species are found in this biome.
What is a rainforest?
200
This is one of the main molecules that causes global warming.
What is carbon dioxide?
200
This organism can change a substance into a usable form
What is nitrogen-fixing bacteria?
200
When liquid matter changes into gas matter.
What is evaporation?
200
Species clearly critical to the ecosystem.
What is a keystone species?
200
A Rainforest has no ________.
What is seasonal changes?
300
_________ holds one of the largest carbon deposits in the world
What is limestone?
300
Nitrogen-fixing bacteria can be located in this.
What is a legume?
300
Network of rivers and streams flowing into a river basin.
What is river system?
300
A sport that kills many animals for there resources or for fun.
What is poaching?
300
This biome is the largest on the planet.
What is a marine biome?
400
This substance is used by many people today.
What is fossil fuels?
400
This weather can change nitrogen into nitrates.
What is what is a thunderstorm?
400
The Mississippi _________ is one of largest in North America
What is a watershed?
400
This animal became extinct because it didn't know humans were dangerous.
What is a dodo?
400
Forests are constantly being destroyed by this.
What is deforestation?
500
Parts of bones and shells is made of this substance?
What is carbonate?
500
These organisms brake down wastes and return nitrogen into the atmosphere.
What are decomposers?
500
The Ogallala________is one of the largest in the world and is found in the central United States.
What is an aquifer?
500
Many of these happened millions of years ago when the planet got too hot or cold.
What is mass extinction?
500
This animal is only found in a rainforest
What is amazon river dolphin?
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