Across
1
Measure of matter in an object
2
Push or pull on an object
3
Force that attracts objects together
6
Compound containing oxygen
Down
1
The Red Planet
2
Preserved remains of ancient life
4
Path of a planet around the sun
5
Biological catalyst
Measure of matter in an object
Push or pull on an object
Force that attracts objects together
Compound containing oxygen
The Red Planet
Preserved remains of ancient life
Path of a planet around the sun
Biological catalyst