Page 128 - ICSE Science 3 : E-book

GLOSSARY
GLOSSARY

Condensation: The process during which
Abdomen: The portion of the body below the
cooling or decreased temperature changes a
thorax that contains diff erent body systems
matter from gas to liquid
Air pollution:The addition of harmful substances
Conservation of energy: The process of saving
to the air as a result of human activities
energy by reducing its use and wastage
Antennae: A pair of long sensory organs on the
Cotyledons: The part of the embryo within the
head of insects
seed of a developing plant

Bark: The tough or hard covering of a woody
Deep breathing: Method of breathing in a lot
stem
of oxygen-rich air
Beak: A hard pointed or curved outer tip of a
Diaphragm: An organ that helps the lungs to
bird's mouth
expand and contract while breathing
Birdbath: A small and shallow bowl that
Dicot seed: Seed that contains two cotyledons
contains water for birds to drink, bathe and inside it
cool themselves

Bird feeder: A container with food for birds that
Edible: Something that is safe to eat
is kept outdoors
Embryo: The baby plant inside the seed
Boiling: The method of purifying water by
Evaporation: The process during which heating
heating it for some time
or increased temperature changes a matter
Breathing: Process of taking in oxygen and from liquid to gas
giving out carbon dioxide
Excrete: Ability to give out waste products from
the body
Chitin: A strong substance that forms the Exoskeleton: Hard outer covering of insect's

exoskeleton of insects body that is made up of chitin

Chlorination: The process of purifying water External organs: Organs that we can see
using chlorine
Cleanliness: The state of being neat, clean and Fibrous root: Root that has a number of thin

free from dirt roots growing in all directions from the base of
Cocoa: A dark brown powder that is made from the stem

the roasted and ground seeds of cacao Filtration: The process of removal of insoluble
impurities from water by fi ltering it
Compound eyes: Type of eyes that are made up
of several smaller eye units Flavour: A particular kind of taste

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