Page 19 - ICSE Science 3 : E-book

conditions. Insects such as cockroaches
and ants have long antennae that help

them to sense things around them.

Plants do not have sense organs like
animals. But they also feel changes in

the surroundings and respond to them.

For example, leaves of touch-me-not
plant close upon feeling a touch. Many a dog hangs out its a touch-me-not plant
tongue in hot weather closes when touched
plants shed their leaves during autumn
Living things feel changes and
and bear fl owers in spring.
respond to them

Living things excrete (give out waste)

Living things give out harmful wastes from their bodies.

Animals and humans excrete wastes in the form of urine,
faeces and sweat.

Plants also excrete waste products.
Did You Know!
They give out excess water through
The process of giving
their leaves. Various parts of trees also out wastes from
excrete wastes as gums, resins, etc. the body is called
excretion.
Other waste products are excreted
into the soil around them. humans sweat when
they feel hot
Living things excrete waste
ACTIVITY TIME

Draw pictures of any two living and non-living things that you see in the surroundings
and name them.

Living things Non-living things

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