The 26th element
What is iron
how many countries are there
195
MgO2
magnesium oxide
if -3x x y + 78x= 4x, what is y
28
whats it called when a lizard regrows its tail
Epimorphic regeneration
who discovered America
Leif Erikson
potassium oxide
K2O
Einstein's theory of relativity
E=mc2
why did Columbus sail to America
to find a new trading route
chemical formula for obsidian
70–75% SiO2, plus MgO, Fe3O4
temp of earths core
5400c
who searched for the Seven Cities of Cibola
Francisco Vázquez de Coronado
More commonly known as Louwala-Clough to the Klickitat Native American tribe, what stratovolcano erupted on May 18, 1980 and caused over $1.1 billion in damage in Washington according to the International Trade Commission?
mount st. helens
can black holes evaporate
yes
Only french explorer evah
René Robert Cavalier, Sieur de la Salle
what material is SiO2
rose quartz