Air
Water/ Soil
Climate/ sunlight
Nitrogen and more
Extra
100
The role of nitrogen in an ecosystem. 
plant support
100
3 main steps in the water cycle
evaporation, condensation and precipitation
100
average weather overtime
climate
100
2 things farmers can do to add nitrogen to the soil


daily quad

leave crops on the field, add manure or nitrogen fertilizers, grow nitrogen fixing plants
100
a network of food chains
web
200
the role of oxygen in an ecosystem
respiration, breathing
200
2 major roles of water in an ecosystem
reproduction, photosynthesis, cells are mostly water, digestion, respiration
200
2 primary factors of climate



rain and temperature
200
2 things that release nitrogen 
lightning and bacteria
200
the amount of energy available is shown in this diagram
pyramid
300
what is one role of carbon dioxide  in an ecosystem
photosynthesis
300
Why soil is abiotic and biotic?
abiotic- non living/ contains living things
300
What controls the temperature of the Earth? 
sunlight
300
using chemicals to make your own food


Daily triple

chemosynthesis
300
largest group of organisms on the food pyramid
producers
400
the most abundant gas in the atmosphere
nitrogen
400
2 components of soil



rock, mineral, decaying plants and animals
400
Climates with more rain and warmer temperatures feature (more or less) living things. 
more
400
Using water, sunlight and carbon dioxide to make food. 


Daily triple

photosynthesis
400
primary energy source
sun
500
Why is oxygen required for digestion? 


Daily Double

releases energy in food
500
What are some biotic factors in soil? 
bacteria, worms, fungi
500
Explain the rain shadow effect. 
warm moist air rises on top of a mt. ,precip falls, the back side of the mt. is arid
500
What does latitude have to do with climate? 
proximity to equator - makes climates warmer
500
this is released during photosynthesis


daily double


oxygen
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