States, Elements And Compounds Flashcards
solid
state of matter that has a fixed shape and volume
liquid
state of matter that has a fixed volume, but no fixed shape
gas
state of matter with no fixed shape or volume
properties
characteristics or features of an object or substance
diffusion
the spreading of one substance through another due to the movement of their particles
volume
the amount of space taken up by an object or substance
fluid
a substance that flows and has no fixed shape. Gases and liquids are fluids.
alchemists
olden-day ‘chemist’ who mixed chemicals and tried to change ordinary metals into gold. Alchemists also tried to tell the future.
investigations
investigations activity aimed at finding information
observations
information obtained by the use of our senses or measuring instruments
scientists
people skilled in or working in the fields of science; scientists use experiments to find out about the material world around them
elements
pure substance made up of only one type of atom
periodic table
a table listing all known elements. The elements are grouped according to their properties and in order of the number of protons in their nucleus.
group
group in the periodic table of elements, a single vertical column of elements with a similar nature
inert
not reactive
