someone who travels and works in space
used for describing something that exists now, especially when it might change or be replaced
a round, or almost round, object or shape
a picture produced by computers
not at all sensible or practical
to produce a copy of a computer document from a printer
an important part or aspect of something
to make goods in large quantities in a factory
a way of thinking about something
a flammable gas
a structure made of a strong material such as stone or wood that has a roof and walls, for example, a house
a substance, especially one used for a particular purpose
a soft, dry substance that looks like dust or sand
the continuous movement of a liquid in one direction
to make something hot
astronaut
print out
Building
material
feature
flow
powder
graphic
heat
perspective
manufactured
crazy
ball
propylene
Existing
