Visual Dictionary Online

Science

A body of knowledge, often formulated as laws and theories, based on the collection of data through observation and experiment.

CHEMISTRY

Chemistry is the study of the constitution of matter and its interactions; it has numerous applications, including biochemistry, electrochemistry and nuclear chemistry.

matter

Any substance that has mass, is composed of atoms and occupies space.


atom	neutron	molecule

states of matter	nuclear fission	heat transfer

chemical elements

There are more than 110 chemical elements, most of which are naturally present in the universe. The others are created artificially in the laboratory.


table of elements	alkali metals	alkaline earth metals

semi-metals (metalloids)	other metals	transition metals [1]

transition metals [2]	non-metals	noble gases

lanthanides (rare earth)	actinides