Summer cold and cough and the sun

Both children have been sick for a few days. Good thing is last night they slept all night. Dave is back to work today.
Dd asked just before sleep last night "how is the sun made?"... We talked about gas..."but where did the gas come from?"
Oh goodness. I started looking on YouTube for something child friendly considering Dave and I have been looking at this subject off and on in the recent past.

http://www.youtube.com/watch?v=me06I9GDM_k&feature=youtube_gdata_player

http://www.youtube.com/watch?v=S98L93J8AGQ&feature=youtube_gdata_player

Thought we could also do a bit of art a sun made of hand prints?? We'll see