"materials" - key terms from Wikipedia

amorphous materials
art materials
bill of materials
building insulation materials
building materials
ceramic materials
characters of his dark materials
common materials
composite materials
crystalline materials
dark materials
dielectric materials
ferromagnetic materials
fictional materials in the stargate
fragrant materials
hazardous materials
instructional materials
insulation materials
magnetic materials
materials
materials designed to result
materials in the stargate universe
materials physics
materials science
materials such
mechanics of materials
natural materials
nuclear materials
other materials
phosphorescent materials
photographic materials
piezoelectric materials
radioactive materials
raw materials
raw materials and energy
refractory materials
reinforcement materials
release of nuclear materials
resistance switching materials
safety glazing materials
scientology materials
semiconductor materials
specialty materials
strength of materials
synthetic materials
thermoelectric materials
these materials
transparent materials
two materials
waste materials