Across
1
Unit of force
4
Amplified beam of light
6
Unit of electric potential
7
Unit of energy
8
Form of thermal energy
Down
2
Gas essential for breathing
3
Force that attracts objects together
5
Our home planet
9
Infectious microscopic agent
Unit of force
Amplified beam of light
Unit of electric potential
Unit of energy
Form of thermal energy
Gas essential for breathing
Force that attracts objects together
Our home planet
Infectious microscopic agent