Materials
Material that comes from trees
Wood
True or false: Plastics can be natural or synthetic
True
Tool used for marking
Pencil, marker
A technique that requires scissors
Material used for windows
Glass
Name three properties of plastic
Flexible, malleable, resistant to stretching, bending, twisting and compression, insulating, light(weight), impermeable
A tool used for cutting that is NOT scissors
utility knife, handsaw, or jigsaw
Finding and recording the size or amount of something
Measuring
A long, thin fiber used to make textiles
Thread
Plastics are formed by long __________ of molecules called polymers.
Chains
Used to make holes
Hole punch or Drill
A technique that uses a punch
Creating holes
Name two natural fibers that come from animals
Wool and silk
Synthetic plastics are made from ___________.
Fossil Fuels
Three pieces together used to join things
Nuts, bolts and washers
2 techniques used to smooth materials
Sanding and filing