minutes (pre a. Which ice cube melted Purpose To use an elec b. Which ice cube is melting most slowly? difference bet Apparatus electroscope 1. How do your observations compare with your predictions? 2 acetate strip Summing Up silk cloth squa small metal tu 2. Which way did heat flow in this activity? (That is, from what did heat flow to what?) . Two of the surfaces were conductors, and two of the surfaces were insulators. Which were which ? 4. What advantage-in terms of heat transfer-did one defrosting tray have over the other? Can-form Electros 5. What advantage-in terms of heat transfer-did one Styrofoam plate have over the other? Discussion A microscope ena things that are ver charge. Your lab p perform the same 6. Which of the following conclusions are supported by your observations and which are not? Give insulators can be evidence from this activity to justify your conclusion. Procedure a. "Metals transfer heat faster than Styrofoam." PART A: POLARITY Step 1: Check to er electroscope and t b. "Black surfaces transfer heat faster than nonblack surfaces." materials are functi I'M MELTING, I'M MELTING 90