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_______ is the study of living things.
In _________ you will study how substances react together.
In _______ we study the nature of matter and energy.
Astronomy is the _______ of the stars.
_______ dissolved in water is often used as a cleaning fluid.
The ____ caused corrosion.
An ______ will turn litmus paper blue and can be used to neutralise acids.
Neutral is neither acid nor ________.
_________ is used to make drink cans.
Water is two parts ________ and one part oxygen.
_________ burns a bright white light in certain situations.
_________ is a hard, grey metallic element often used in special steels.
The earth's atmosphere is one-fifth ______.
__________ glows in the dark and ignites in the air.
_________ is at the top of the reactivity series.
______ is the modern spelling of sulphur.
____ can be used to coat iron and steel to prevent rust.
Air consists of about 79% Nitrogen.
Cyanide is a very dangerous ________.
Oxygen, nitrogen and hydrogen are _____ at room temperature.
