Across
1
Disturbance that transfers energy
4
Curved glass that refracts light
5
Chemical element in table salt
6
Our home planet
Down
2
Unit of energy
3
Form of thermal energy
7
Center of an atom or cell
8
Unit of power
Disturbance that transfers energy
Curved glass that refracts light
Chemical element in table salt
Our home planet
Unit of energy
Form of thermal energy
Center of an atom or cell
Unit of power