Page 65 - Viva ICSE Science 5 : E-book

Do and Learn

Let’s Compare Germination of Different Seeds

Take some seeds of bean, gram, coriander and papaya. Sow them properly in soil and water
them daily.

Now observe the following and note down in the given table.
1. The number of days each of the seeds takes to germinate or sprout into a new plant

2. The length of each seedling after ten days of its germination
3. The length of each plant after twenty days

Bean seed Gram seed Coriander seed Papaya seed

(a) Number of days taken
to germinate into a
seedling
(b) Length of plant after
ten days
(c) Length of plant after
twenty days

Now answer the following questions on the basis of your observations.

1. Which seed germinated in the shortest period of time?
2. Which seed took the longest time to germinate?

3. Which plant has shown the fastest growth in its length?

Group Activity
All fl owers are not same. They may be bisexual or
Outdoor Activity monosexual. Also, two bisexual or two monosexual

Visit a nursery and learn about fl owers may diff er in the arrangement of petals,
the methods used by the gardener sepals, androecium or gynoecium.
for reproducing plants. Write down Form groups of four to study these diff erences. Each
your observations and make a group has to pick two diff erent fl owers. Observe and
small report. compare the arrangement of diff erent whorls in two
fl owers. Write down the diff erences and draw well-

labelled diagrams.

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