Teacher's Resources

1. Introduction to Chemistry

Click the correct answer (True or False).

New discoveries and inventions in science have made our lives more comfortable.

True

False

Physical processes take place to produce numerous useful substances.

True

False

The work of alchemists contributed in laying the foundation for modern chemistry and medicine.

True

False

All the cosmetics that we use today are made from combinations of various chemical ingredients.

True

False

Natural ﬁbres are strong, wrinkle-resistant and dry quickly.

True

False

Science has two main branches: chemical science and natural science

True

False

J.J. Thomson discovered electrons.

True

False

Urea and sodium nitrate are insecticides.

True

False

Manufacturing of clothes involves the combination of fibres into fabrics.

True

False

Ampicillin is an antibiotic used to treat infections.

True

False

By the late eighteenth century, the field of chemistry had completely separated from traditional alchemy.

True

False

Physical processes take place to produce numerous useful substances.

True

False

The work of alchemists contributed in laying the foundation for modern chemistry and medicine.

True

False

All the cosmetics that we use today are made from combinations of various chemical ingredients.

True

False

The natural fibres are strong, wrinkle-resistant and dry quickly.

True

False

Click each box on the left and then click the matching box on the right.

Match the columns.

Alchemy

Plum pudding model

Ethylene oxide

Yogurt

Sodium benzoate

Philosopher’s stone

J.J. Thomson

Fungicide

Processed food

Food preservative

Click the correct answer.

is the knowledge attained through study or practice.

Science

Social science

English

Philosophy

is a branch of physical science.

Chemistry

Biology

Psychology

Life science

Alchemy aimed at finding .

philosopher’s stone

gold

silver

platinum

was the ﬁrst one to formulate the modern periodic table of elements.

Dmitri Mendeleev

Ernest Rutherford

Niels Bohr

John Polton

Ernest Rutherford performed the famous .

gold foil experiment

silver foil experiment

experiment for discovery of oxygen

experiment for discovery of radium

proposed that energy levels of electrons are discrete.

Niels Bohr

J.J.Thomson

Dmitri Mendeleev

Marie Curie

were regarded as early chemists.

Alchemists

Doctors

Physicists

Astrologers

is considered as the ‘Father of Modern Chemistry’.

Antoine Lavoisier

Niels Bohr

Marie Curie

J.J. Thomson

John Dalton is credited for proposing .

modern atomic theory

law of conservation of mass

modern periodic table

plum pudding model

Carbaryl is a/an .

insecticide

medicine

antacid

preservative

Cheese and breads are examples of .

processed foods

baked foods

cooked foods

stored foods

Penicillin and are examples of antibiotics.

ampicillin

sodium benzoate

malathion

sorbic acid

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