Page 13 - Active Science 5 Ebook and Activity

to far-off places. The coconut is a heavy
seed, but the seed is covered with spongy Water Lily Seeds

layers of fibre filled with air that helps it
to float on water. Foxglove, water lily and
lotus are other examples of plants whose
seeds are dispersed with the help of water.

Dispersal of Seeds by Animals
Mistletoe Seed
Animals eat fruits like the apple, mango,
raspberries, grapes, etc., and throw the Coconut Seeds
seeds anywhere. Sometimes, they ingest the
seeds along with which are then deposited

far away in the animal droppings. When Cocklebur Seeds
these seeds find moist soil and suitable
conditions for growth, they give rise to the
new plant.

Some plants produce seeds that have hooks.
The hooks stick to the animal fur and get
scattered far and wide as the animal moves
from place to place. Examples of plants

whose seeds are dispersed by animals are Berry Seeds
mistletoe, berries and cocklebur.

Dispersal of Seeds by Explosion
Fruits of some plants like pea, bean,
balsam, peanut and castor, etc., burst open

when they are ripe and scatter the seeds in Pea Seeds Bean Seeds
all directions. This mechanism of dispersal
is called explosion.

Let’s Recapitulate

Fill in the blanks.

1. The process of spreading seeds to different places is called __________.
2. Cotton seeds disperse by ________.

3. Seeds are ________ by number of ways.
4. Some plants like pea, bean, balsam and peanut scatter the seeds in all directions. This
mechanism of dispersal is called______________.

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