Science Test 6 Name:______________ Multiple choice: 1. Which state of matter is made up of ions? a. b. c. d. Solid Liquid Gas Plasma 2. Ions are? a. b. c. d. Molecules that have a negative charge Cytoplasm Atoms that have lost or gained electrons Atoms that have lost or gained protons 3. When a liquid turns into a gas this is called: a. b. c. d. Sublimation Vaporization Condensation Ionization 4. When a solid turns into a gas this is called: a. b. c. d. Sublimation Vaporization Condensation Ionization 5. Scientist believe that the temperature of space is: a. b. c. d. Absolute zero 32 degrees Fahrenheit 10 degrees Kelvin 20 degrees Celsius 6. When a solid changes to a liquid, this is called: a. b. c. d. Melting Deposition Condensation Freezing 7. When a gas changes to a solid, this is called: a. b. c. d. Melting Deposition Condensation Freezing 8. Water’s ability to dissolve other substances is known as: a. b. c. d. Polarity Surface tension Solubility Viscosity 9. Water’s ability to form hydrogen bonds is known as: a. b. c. d. Polarity Surface tension Solubility Viscosity 10. Water has a high heat capacity because it: a. b. c. d. Gets hot quickly Holds heat for a long time Gets cold quickly Boils quickly Short Answer: 11.Which has a higher viscosity hot syrup or cold syrup? 12.Describe an example of surface tension on water: 13. When a gas becomes plasma this is known as what? 14.When a liquid becomes a solid, this is known as what? 15.Give 2 examples of plasma: 16.Which state of matter has definite shape and definite volume? 17.Which state of matter has definite volume, but not definite shape? 18.Why does metal have a low heat capacity? 19. Every substance with a pH below 7 is a? 20. Every substance with a pH above 7 is a? 21.Give an example of a substance that is neutral on the pH scale? 22.Give an example of an acid? 23. Give an example of a base? 24.What is a buffer? 25.Give an example of a buffer: 26.2 types of heat engines are: 27.Heat naturally moves from___________________ to _________________________. Matching A. B. C. D. E. F. G. H. I. J. K. L. M. N. O. Ion Sublimation Plasma Absolute zero Deposition Heat capacity Kelvin scale Viscosity pH scale polarity solubility acid hydrogen bond surface tension base 28.___ a range of values from 0 to 14 that indicates the concentration of hydrogen ions in a solution 29.____ the quality of having opposite charges for different points of a molecule 30.____ a substance with a pH less than 7.0 31.____ a weak bond that connects hydrogen- containing molecules at polar areas. 32.____ the lowest possible temperature at which matter has no remaining thermal or heat energy. 33.____ the ability to store and release heat energy. 34.____ the elastic property of liquids that allows drops to form and creates the smallest area possible at the surface of a liquid. 35.____ the ability of one substance to dissolve in another. 36.____ a temperature scale that begins at absolute zero. 37.____ superheated gas composed of electrically charged particles. 38.____ an atom that has gained or lost one or more electrons. 39.____ the resistance of a liquid to flow. 40.____ a substance with a pH greater than 7.0. 41.____ the change from a solid to a gas without passing through the liquid state. 42.____ the change from a gas to a solid without passing through the liquid state. Extra Credit: - Why is water sticky? - What is water’s adhesion? - What is water’s cohesion?