Identify the distances of layers or the Earth by dragging a distance to its
correct location. If it does not turn green, move the word around a little or
try another location. There are more choices than locations so not all
will be used.
0 km
40 km
650 km
1,760 km
2,700 km
2,890 km
5,150 km
7,100
km 340
km 150
km