I’m pretty sure the answer would be :
9.8m/s2
Explanation: gravity =9.8m/s2
Iron
Iron is a chemical element with symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series.
( Source : Wikipedia )
1, 5 and 6 are the rocks your looking for, they make up the other ones on your list
If im not wrong lunar eclipse is when the Earth, moln and sun all line up, leaving the Earth in the middle. You can recheck later.