Mata Tiempo
Juegos de palabras
Elements and Extremes
1
2
3
4
5
6
7
Across
1.Frozen region at the top of Earth
3.Fundamental or underlying level
6.Nervous or overly strict demeanor
7.Leftover piece from something larger
Down
2.Tiny ocean organisms drifting in water
4.Noble gas used in lighting devices
5.Strong metal used in construction