Friday, 27 April 2012

Today we will be doing some research into something called thermite to get ready for next week. Try and find information on the following that you can print out at the end:

What is thermite?
What is used to make it?
What can it be used for?
What elements are involved?
Why is it dangerous?
Is the reaction a chemical or physical change?

Include any diagrams that you find, and save and print your work at the end of the lesson.

Tuesday, 17 April 2012

Introduction

Today we will be looking at the start of the 'Cook' unit.  Answer the following questions in your books to help get ready for the practical in period three:

  1. How mayn ways of heating something are there? - http://www.wisc-online.com/Objects/ViewObject.aspx?ID=sce304 
  2. Explain what types of things conduction, convection and radiation occur in - http://www.bbc.co.uk/scotland/learning/bitesize/standard/physics/energy_matters/heat_in_the_home_rev1.shtml#top
  3. Imagine you are at a bbq cooking some food on the grill.  What types of heat transfer are warming up the food?
                  
4. Use the table on this page to give two examples of conduction during cooking - http://www.cookingforengineers.com/article/209/Heat-Transfer-and-Browning-Foods
5. List one thing you SHOULD do and one thing you SHOULD NEVER do when using Bunsen burners - http://www.wpi.edu/offices/safety/bunsen.html
6. How many people in the U.S. have burns injuries each year? - http://www.burnsurvivor.com/burn_statistics.html
7. What methods of heat transfer are used here? - http://www.ecookinggames.com/game/pumpkin-pancakes/  , http://www.cookinggames.com/ ,
8. Imagine someone was cooking your favourite meal for dinner. What is the recipe and what types of heat transfer are involved?


HOMEWORK - Watch this short video, and write down how Heston uses each method of heat transfer to make the meal.  Bring your answers in for an achievement point next week!