A) core B) corona C) photosphere D) chronosphere
A) lunar eclipse B) the aurora borealis C) solar eclipse D) flow of protons and electrons from sun
A) helium is formed B) all of the above C) nuclear fusion D) 2 hydrogen atoms combine
A) the sunset B) the northern lights C) the moon D) solar winds
A) chronosphere B) corona C) convection zone D) photosphere
A) radio waves B) gamma rays C) microwaves D) x rays
A) gamma rays B) microwaves C) radio waves D) x rays
A) True B) False
A) infered light B) the visible spectrum C) we can see all of the electromagnetic spectrum D) ultraviolet light
A) 93 million miles B) 93 billion miles C) 93 thousand miles D) 1 light year |