Across
1
Path of a planet around the sun
4
Natural satellite of Earth
5
Unit of power
6
Gas form of a liquid
8
Biological catalyst
Down
2
Force that attracts objects together
3
Icy body with a tail near the sun
7
Element found in all living things
Path of a planet around the sun
Natural satellite of Earth
Unit of power
Gas form of a liquid
Biological catalyst
Force that attracts objects together
Icy body with a tail near the sun
Element found in all living things