Acid+attack

9F Sculpture park

Acid attack
Describe what happens when iron corrodes. Explain how some metals are naturally protected against corrosion. Write word equations for the reactions of metals with acids. Describe ways in which metals can be protected against corrosion.
 * Outcomes (what you will be able to do by the end of this lesson) **


 * Starter **
 * Review homework and completed work from last lesson

> (design maybe done as a class discussion or in groups. For safety reasons designs must be agreed with your teacher before you start your practical work.) > Reaction of zinc with different strength acids > media type="file" key="ES9_Fc072_09ani.swf" width="640" height="480" > Review the reaction of magnesium with acid > media type="file" key="ES9_Fc072_13vvv.flv" width="640" height="480"
 * Activities **
 * 1) Design and carry out an investigation into [[file:ES9_CHAP_Fc5.pdf|how different factors affect the rate at which magnesium reacts with an acid]]. Choose a single factor to investigate. You may use the videos below to help you understand the reactions of metals with acids before you start your investigation.
 * 1) Complete textbook questions 1-9 from p72-3 of Exploring Science 9
 * 2) Extension: Show your data analysis skills by completing [[file:ES9_CHAP_Fc9.pdf|Which metal reacts the best?]]


 * Summary **
 * Review completed classwork / key term quiz


 * Homework activity options **
 * Download complete the gapfill on Acid attack, print-off and stick into your exercise book. You can copy and complete if you have a problem printing.

A summary sheet on Use the  to help you and to check whether your equations are right. Interactive word equations media type="file" key="ES9_Fc072_07ani.swf" width="640" height="480"
 * Useful extras **