Page 16 - ICSE Science 3 : E-book

Living things need food

All living things need food to live and grow. They get energy they need to do
work from food. Green plants make their own food with the help of air, water and

sunlight. Animals and humans depend directly or indirectly on plants for food.

plants make food animals eat plants humans eat fruits
and vegetables
Animals and humans depend on plants for food

Living things breathe

All living things need air to breathe or respire. Without breathing, they cannot live.
They have special structures to carry out breathing.

Plants breathe through very small openings called stomata present on the under
surface of their leaves.

Animals living on land such as humans have lungs to take Did You Know!

in air. They breathe through their nose. Most animals that Grown-up frogs
live in water like fi sh and octopus, breathe through their breathe both through
their skin and their
gills. They take in air dissolved in water. Insects like ants
lungs.
and butterfl ies breathe through air holes in their body.

gills in fi sh nose in humans stomata in plants
Living things breathe air through these to live

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