Term 2 Topic 3 Properties of acids, bases and neutrals IntroductionTell the learners that they will learn about acids and bases which have specific properties that assist us to distinguish them from one another.Show the following 4 short video clips / select what you would like to show:Video Clip 3: Knowing Acids [0:50min.].Video Clip 4: Acids Found In Nature. [0.50 min.].Video Clip 5: Bases. [0:38 min.].Video Clip 6: Bases in Our Everyday Life. [1:05 min.].Teacher Input 3Inform the learners about the importance of knowing the properties of the different chemicals in order to be aware whether they are dangerous or safe and their usage.Share the following interesting fact:The word ‘acid’ is derived from two Latin words, namely acidus and acere.Remind the learners to be attentive when they watch the presentation, because they will do a practical identification [items/ pictures on an A4 page] and complete an activity afterwards.Present an overview of the different properties of acids, bases and neutrals by using Presentation 2: Properties of acids, bases and neutrals.Learner Activity 3The learners are grouped and receive 3-4 items / an A4 page with pictures which they must classify randomly as acids, bases and neutrals.Possible items: Aspirin; Vanish; oven cleaner; face soap; bicarbonate of soda; salt; fruit; oil; buttermilk; water; chillies; mouth wash; vinegar; etc.Learners place the items in columns [bases; acids; neutrals] or cut it out and then paste it into columns.Complete Worksheet B: Properties of acids and bases.Teacher to use Worksheet B: Memorandum to mark the learners’ work.Teacher Input 4The following video clips are also interesting and informative. It can be shown to the learners if there is sufficient time:Video Clip 7: Preparation of a Beetroot Indicator [1:18 min.]. Video Clip 8: Turmeric as indicator | Acids & Bases | Chemistry [2.28 min.].Video Clip 9: Neutralization in Our Daily Life [1.01 min.].Learner Activity 4Learners share the new information that they learnt about acids, bases and neutrals.They comment on the video clip about neutralization in our daily life. By Administrator|2018-02-19T10:27:50+02:00February 19th, 2018|0 Comments Share This Story, Choose Your Platform! facebooktwitterlinkedinredditwhatsapptumblrpinterestvkEmail About the Author: Administrator Leave A Comment Cancel replyYou must be logged in to post a comment.