Physics and Astronomy Labs/group 6

1 Which portion of the HR diagram has stars with the greatest luminosity?

	top side
	upper right corner
	lower left corner
	left side
	upper left corner

2 What color is the sky?

	black
	blue
	orange
	red

3 About how long ago was the solar system formed?

	5 billion years
	4.6 billion years
	5.5 billion years
	5.6 billion years

4 How many planets are in the solar system?

	7
	8
	10
	5

5 What are the two largest planets?

	Earth and Mars
	Jupiter and Saturn
	Uranus and Neptune
	Mars and Venus?

6 What solar system is Mother Earth located in?

	orion's belt
	milky way
	sagittarius
	louis vuitton