Natural Sciences Grade 7

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Presentation transcript:

Natural Sciences Grade 7 Term 2: Matter and Materials Acids, bases and neutrals (ppt1)

Topic 3 Acids, bases and neutrals Tastes of substances Natural Sciences - Grade 7

Natural Sciences - Grade 7 Salty (1) The human tongue can sense the following four different tastes: sour sweet bitter salty Natural Sciences - Grade 7

Natural Sciences - Grade 7 Salty (1) Natural Sciences - Grade 7

Natural Sciences - Grade 7 Salty (2) A few examples of food to which salt is usually added: chips popcorn fish meat Natural Sciences - Grade 7

Natural Sciences - Grade 7 Sweet (2) A few examples of fruit that taste sweet: figs strawberries berries granadillas kiwi fruit watermelon pears oranges Natural Sciences - Grade 7

Natural Sciences - Grade 7 Bitter (3) Can you think of examples of things that taste bitter? Cocoa Almond nuts Green cabbage Brinjals Natural Sciences - Grade 7

Natural Sciences - Grade 7 Sour (4) Examples of food that taste sour Natural Sciences - Grade 7