Across
1
Gas essential for breathing
3
Basic unit of life
5
Particle of light
6
Second lightest element
Down
2
Tectonic landmass section
4
Natural satellite of Earth
7
Unit of electric potential
8
Force that attracts objects together
Gas essential for breathing
Basic unit of life
Particle of light
Second lightest element
Tectonic landmass section
Natural satellite of Earth
Unit of electric potential
Force that attracts objects together