Class+brainstorms

**On Average the wax melted in the following order:** **1st ___ 2nd__ ___ 3rd__ Last _. We noticed that................happened.**
 * Conclusion:**

**The wax melted fastest with the __because the molecules are easer to move than in the other metals and this is what makes the heat travel through the metal. This is called “heat conduction”. Where the molecules are more difficult to move, heat takes more time to move through it.__**

__ **Conduction occurs when the molecules bump against each other and cause more movement. It is like pushing someone who trips and pushes another person in a crowd and the movement ripples outwards.** __

__ **We use copper metal in** __**___ because we want heat to__ _;** **we use steel in so that heat doesn’t_.** **Brass is used in taps because__. Aluminium is used in pots because___. All of these metals do get hot after a while such as___.__**

__ **Plumbers/engineers/sheet metal workers use** __ **__because it is easy/hard to transfer heat. This is good/a problem because___.**

**Cooks prefer __because__ _, however they need to be careful that food may burn.**

**A welder uses _ to braise metal because it is easy to melt but the welder is made of which gets hot but not too hot.**

**Results:** **The wax melted in the following order:** **Our Group found that the wax melted in the following order:** **1st ___ 2nd__ ___ 3rd__ Last _**
 * Table 1: Time taken for wax to melt (seconds) ||
 * || Copper || Steel || Brass || Aluminium ||
 * Our Group ||  ||   ||   ||   ||
 * Group 2 ||  ||   ||   ||   ||
 * Group 3 ||  ||   ||   ||   ||
 * Group 4 ||  ||   ||   ||   ||
 * Group 5 ||  ||   ||   ||   ||
 * Group 6 ||  ||   ||   ||   ||
 * Group 7 ||  ||   ||   ||   ||
 * Group 8 ||  ||   ||   ||   ||
 * Group 9 ||  ||   ||   ||   ||
 * Group 10 ||  ||   ||   ||   ||
 * Average ||  ||   ||   ||   ||

**The class average:** **1st ___ 2nd__ ___ 3rd__ Last _**

**Method:** **Procedure:** **1. We put small pieces of wax in the hollows on the ends of 4 strips of different metals that were fixed on a round wooden frame.** **2. We heated the metal strips.** **3. We timed the melting of the wax.** **4. We recorded the times in a table.**

Monday 4th April