Across
- 3. A change that involves the transformation of one or more substances into one or more different substances (2 words)
- 4. The study of matter, its transformations, and how it behaves
- 5. The smallest particle of an element that retains the characteristic chemical properties of that element
- 7. Anything that has mass and occupies space
- 8. The phase of matter in which a substance has both definite shape and definite volume
- 10. Properties of a substance that can be observed and measured without changing the composition of the substance (2 words)
- 13. Matter that is composed of only one kind of atom
- 14. The phase of matter in which a substance has no definite shape but a definite volume
- 17. The smallest unit of a compound that retains the composition and properties of that compound
- 18. The three physical states: solid, liquid, and gas (3 words)
- 19. The temperature at which the vapor pressure of a liquid is equal to the external pressure on the liquid (2 words)
- 20. A change that involves only physical properties (2 words)
Down
- 1. A collection of characteristics that describe matter
- 2. A type of scale with processes and properties large enough to be observed directly
- 3. The properties of a substance that involve a chemical change in the material and often involve a substance interacting with other chemicals (2 words)
- 6. The temperature at which the crystal lattice of a solid collapses and solid is converted to liquid (2 words)
- 9. The phase of matter in which a substance has no definite shape and a volume defined only by the size of its container
- 11. Matter that is composed of two or more kinds of atoms, chemically combined in definite proportions (2 words)
- 12. A substance that contains only one type of element or compound and has fixed chemical composition (2 words)
- 15. A type of scale of measurement used to describe individual atoms or molecules
- 16. The temperature at which the solid and liquid phases are in equilibrium at 1 atm (2 words)