ACROSS
1. It is anything that occupies space and has mass.
3. This is in between the particles of matter.
4. It has the weakest attraction among the three states of matter.
6. It is the smallest particle of matter.
7. It has particles that are packed closely together.

DOWN
2. This is an example of a non-matter.
5. Solids, liquids and gases are examples of this.
8. It takes the shape of the container and has definite volume.
9. This is an example of a solid.
10. This is the strongest energy among gas particles.​