Science Crossword

4. a tiny, negatively charged particle that moves around the outside of the nucleus of an atom.
5. two or more substances that are together in the same place but their atoms are not chemically bonded.
6. the basic particle of which all elements are made.
8. elements in the same vertical column of the periodic table; also called family.
10. a change that alters the form or appearance of a material but does not make the material into another substance.
11. The ratio mass of a substance to its volume.
12. a state of matter that has no definite shape but has a definite volume.
13. a horizontal row of elements in the periodic table
14. a state of matter with no definite shape or volume.
16. how hot or cold something is; a measure of the average energy of motion of the particles of a substance.
19. the amount of space that matter occupies.

1. anything that has mass and takes up space.
2. A change in which one or more substances combine or break apart to form new substances.
3. a small particle in the nucleus of the atom,with no electrical charge.
7. a single kind of matter that is pure and has a specific set of properties.
9. a substance that enters into a chemical reaction.
10. an arrangement of the elements showing the repeating pattern of their properties.
15. any substance that can flow.
17. A substance that cannot be broken down into any other substances by chemical or physical means.
18. small, positively charged particles that are found in the nucleus of an atom