Chem
Bio
Physics
Earth science
Mixed
100
Levels of electrons
What is energy levels?
100
Cleaning of blood through a machine
What is hemodialysis?
100
Constant downward force on earth
What is gravity?
100
Growth towards gravity
What is gravitropism?
100
Cell that controls gas exchange in plants
What is a guard cell?
200
Compound of two gasses
What is a molecular compound?
200
The brain of a cell
What is the nucleus?
200
Energy is never gained or lost only transfered including heat
What is the first law of thermodynamics?
200
Change of the structure of an organism
What is an adaptation?
200
In NA these are reffered to as prairies
What is grasslands?
300
N2O (g)
What is dinitrogen monoxide?
300
A "package" leaving the cell
What is endocytosis?
300
Efficiency formula
What is output over input?
300
The percent of solar radiation that it reflects
What is the albedo of a surface?
300
Transports sugar in plants
What is the phloem?
400
Smallest particle on earth
What is an atom?
400
Removing salt from sea water
What is desalination?
400
Earth's most dominant energy source
What is solar energy?
400
Gasses that contribute to the greenhouse effect
What are greenhouse gasses?
400
Sodium nitride
What is Na3N (s)
500
The number under the symbol on the periodic table
What is atomic mass?
500
Specialized ground tissue between upper and lower epidermis
What is mesophyll?
500
Speed equation
What is v=d÷t
500
Hvap=Q÷n
What is heat of vapourization?
500
Ca (HCO3) 2 (s)
What is calcium hydrogen carbonate?
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