Across
1
Unit of heredity
3
Force that attracts objects together
5
Molten rock beneath Earth surface
8
Particle of light
Down
2
Absolute temperature scale unit
4
Glass that splits light into spectrum
6
Our home planet
7
Form of thermal energy
Unit of heredity
Force that attracts objects together
Molten rock beneath Earth surface
Particle of light
Absolute temperature scale unit
Glass that splits light into spectrum
Our home planet
Form of thermal energy