Match the element properties with their descriptions. 1. malleability the ability to dissolve in another substance 2. viscosity degree of surface smoothness 3. density ability to be pounded into shapes 4. texture the mass of a sample divided by its volume 5. solubility ability to be pulled into a wire 6. luster how "shiny" a material is 7. ductility how well a substance flows at a given temperature

Apossible explanation for a set of facts that can be tested by further investigation is called

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form