Matter

1. qualities that describe something scientifically
3. a small particle of matter
6. anything that takes up space
7. things that circle around the nucleus of an atom
10. the center of an atom
12. a group of two or more atoms that stick together
13. does not hold shape & particles constantly moving & lots of space between atoms
14. when something changes its state, it is called a _____ change
15. how tightly particles are packed together

2. cannot be broken down into smaller parts
4. smallest particle & is one part of what makes up the nucleus of an atom
5. smallest particle & is one part of what makes up the nucleus of an atom
8. takes the shape of its container & some space between atoms & atoms movings slightly at all times
9. keep their shape & atoms are packed together tightly
11. made up of two elements together