Unit 1
Unit 2
Unit 3
Unit 4
Mixed
100
Goes to the extremes
What is a positive feedback loop?
100
Transparency, dissolved oxygen and stream flow
What are three things you can use to measure how healthy a river is?
100
Decomposition, combustion and respiration
What terms add carbon?
100
Proton (+) and Neutron (0) are in the nucleus and Electron (-) is surrounding it
What particles are where in the atom and what are their charges?
100
Eating (food)
How is nitrogen transferred within our biosphere?
200
Matter doesn't leave and enter and energy can leave and enter
What is a closed system?
200
The amount of water flowing through river at a given time
What is stream flow?
200
Photosynthesis and diffusion
What terms remove carbon?
200
The atomic number, the atomic mass and the element name
What can you find on a periodic square?
200
Precipitation, transpiration, condensation, infiltration, runoff and evaporation
What is within the water cycle?
300
Negative and positive
What are the two types of feedback loops?
300
How clear water is
What is transparency?
300
Over millions of years heat and pressure can transform decayed plant material into fossil fuels like coal, oil and natural gas. It transfers carbon
What are fossil fuels and what do they do to carbon?
300
Metal: shiny, good conductor, easy to bend/form and loses electrons Nonmetal: dull, poor conductor, brittle and gains electrons Metalloid: shiny/dull, shares properties of metals and nonmetals and solids Noble Gas: full outer shell, gas, group 8, non-reactive because of the 8 valence electrons
What are some characteristics of metal, nonmetal, metalloid and noble gas?
300
By adding more concrete because the water can't infiltrate so it runs off
How do humans change the Earth to create extra runoff
400
Earth
What is an example of an open system?
400
The measure of oxygen in water
What is dissolved oxygen?
400
It has increased
How has the amount of carbon in the atmosphere changed over time?
400
Endothermic: chemical reaction that absorbs enegry Exothermic: chemical reaction the releases energy
What are endothermic and exothermic?
400
Bacteria
What organism is responsible for converting nitrogen into various forms in the nitrogen cycle?
500
Hydrosphere, Geosphere, Atmosphere and Lithosphere
What are the four spheres?
500
High: good Low: bad
What is the positive and negative impact of high and low transparency?
500
They add to it by burning fossil fuels
How do humans affect the amount of carbon in the atmosphere?
500
The mass of products is always equal to the mass of the reactants
What is the law of conservation of mass?
500
Using excess fertilizer
How do humans contribute to adding excess nitrogen in the water cycle?
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