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