You walked outside at lunch time on March 21st and look up in the sky and see the Sun directly overhead. You recall that there w
ill be equal lengths of day and night on this particular day. This occurs because the Sun's rays fall in which direction over the Equator? Question 10 options:
Answer: Sodium also floats on the surface, but enough heat is given off to melt the sodium (sodium has a lower melting point than lithium and the reaction produces heat faster) and it melts almost at once to form a small silvery ball that dashes around the surface.
