Across
- 2. The amount of space that matter occupies
- 6. A pure substance that can not be broken down into other substances
- 8. Anything that has mass and takes up space
- 10. The total kinetic and potential energy of all the particles of an object
- 14. A change that alters the form or apperance of a material
- 15. The principle that the total amount of matter is neither created nor destroyed during any change
- 17. The force of attraction that holds two atoms together
- 18. The measurement of how much mass of a substance is contained in a given volume
- 19. A substance made of two or more elements chemically combined in a specific ratio (water)
- 20. A measure of the force of gravity acting on an object
- 21. The basic particle from which all elements are made
Down
- 1. A system of units used by scientists to measure the properties of matter
- 3. A characteristic of a substance that can be observed without change
- 4. A neutral group of two or more atoms held together by covalent bonds
- 5. Two or more substances that are together in the same place but their atoms are not chemically bonded
- 7. Symbols that show the elements in a compound and the ratio of atoms
- 9. How hot or cold something is
- 11. A characteristic of a substance that describes its ability to change
- 12. The study of the properties of matter and how matter changes
- 13. A change in which one or more substances combine or break apart to form new substances
- 16. A single kind of matter that is pure and has a specific set of properties