adjective

an absorbent material can take in or hold a lot of something, especially liquid

adjective

an astringent substance or liquid makes your skin drier or helps to stop a cut from bleeding

adjective

harsh substances are very powerful and may damage the things that they are used on

adjective

something that is impermeable does not let liquid or gas pass through it

adjective

something that is impervious to a substance does not let the substance pass through it

adjective

an impure substance contains an amount of another substance, especially one that is less valuable or of lower quality

adjective

a permeable substance is one that a liquid or gas can pass through

adjective

reacting to light, especially by changing colour

adjective

a porous substance has a lot of very small holes in it so that air and water can pass through it

adjective

consisting of one substance only

adjective

able to dissolve in a liquid and become part of the liquid

adjective

a mixture that is stiff is very thick and keeps its shape when you stop mixing it

adjective

allowed to grow longer without being cut to a particular length

adjective

in one piece, before being cut for use

adjective

a volatile liquid or substance can easily change into a gas

adjective

a water-soluble substance dissolves in water (=becomes part of the water that you put it into)

adjective