How long does it take sunlight to reach the Earth? A) 8 minutes B) 1 minute C) 30 seconds D) 1 hour
8 minutes
How fast does the Earth move in its orbit around the sun? A) 18 miles per hour B) 18 miles per second C) 18 miles per day
18 miles per second
The Moon's density is what percentage of the Earth's? A) 10% B) 50% C) 60% D) 95%)
60%