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

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

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

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

5. 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

6. 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

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

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