Show:
water on earth
Periodic table
surface water
Allels
Elements
100
what is the four step of the water cycle ? 
precipitation , transportation , evaporation ,and condensation  
100
Is Xe a noble gas ?
yes 
100
what is the name of the peace of land that separates water sheds ?
Divides
100
truth or false: homozygous means the same 
truth
100
what is the symbol for lanthanum ?
La
200
what percent of water is fresh ?
3%
200
Im what order is the periodic table arranged in ?
increasing atomic mass 
200
what is another name for small streams the feed into the main river ?
Tributaries 
200
what is heredity ?
the passing on of physical or mental characteristics genetically from one generation to another (passing characteristics to offspring .)
200
Is Sulfur (S) a nonmetal or metal ?

Nonmetal

300
how many sea's and ocean's are there ?
7 seas  and 5 oceans .
300
true or false :  metals but old conductors of heat and electricity 
True
300
What is a runoff ?
ground water 
300
Who is Greg Mendel ? 
he discovered / created heredity 
300
Which one is correct ? 

      A ) potassium 

      B ) pastoasum 

       C ) potasium 

A ) potassium 
400
what is something that plants need ? 
photosythesis
400
what can you find in the periodic table ? 
the symbol , name , atomic number ,mass
400
what is eutrophication ?
nutrients in a lake 
400
what is another name for identical alleles ? 
purebred
400
Does sodium have any isotopes ? 
Yes 
500

what are 5 places H2O is found ?

ocean , sea ,ice , lake , rivers 

500
What does AMU stand for ?
Atomic mass unit
500
what is another word for salinity ?
salt 
500
What is it called when Egg and sperm join ( polynation ) ? 
Fertilization 
500
Who discovered the element Nickel ?

 Axel Fredrik Cronstedt