Matter

2. The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
4. Takes the volume and shape of the container
6. Has definite shape and volume.
7. Water that is frozen into a solid state
9. The change from a gaseous state directly to solid state
12. a change from one state to another without changing the chemical composition of a substance
13. a colourless gas that exists in large quantities in the air, needed by plants and animals in order to live

1. liquid state changes back to a solid state
3. Example of matter in liquid state that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products
5. Gaseous state to liquid state
8. Has a definite volume and takes the shape of the container.
10. Anything that occupies space and has mass.
11. liquid state to gas state