Across
1
Center of an atom or cell
4
Measure of matter in an object
5
Basic unit of life
6
Form of thermal energy
7
Solid with repeating atomic pattern
Down
2
Second lightest element
3
Push or pull on an object
4
Tissue that contracts for movement
Center of an atom or cell
Measure of matter in an object
Basic unit of life
Form of thermal energy
Solid with repeating atomic pattern
Second lightest element
Push or pull on an object
Tissue that contracts for movement