JACplus Chemistry words

Question 1

Alchemists

Answer 1

Olden-day ‘chemist’ who mixed chemicals and tried to change ordinary metals into gold. Alchemists also tried to tell the future.

Question 2

Investigations

Answer 2

Activity aimed at finding information

Question 3

Observations

Answer 3

information obtained by the use of our senses or measuring instruments

Question 4

Scientists

Answer 4

people skilled in or working in the fields of science; scientists use experiments to find out about the material world around them

Question 5

Elements

Answer 5

a pure substance made up of only one type of atom

Question 6

Atoms

Answer 6

a very small particle that makes up all things. Atoms have the same properties as the objects they make up.

Question 7

Atomic Number

Answer 7

A number of protons in the nucleus of an atom. The atomic number determines which element an atom is.

Question 8

Chemical Symbol

Answer 8

the standard way that scientists write the names of the elements, using either a capital letter or a capital followed by a lowercase letter. For example, carbon is C and copper is Cu.