Ways to Strengthen Materials Crossword

Two or more lines in the same direction that never cross
Using weak materials to build a structure will cause it to__________
When something is not hollow inside.
a solid rod made of wood, plastic or metal.
Bending something over on itself to strengthen a sheet of material.
A length or lengths of metal, plastic, glass, etc., in tubular form.
A rod or bar forming part of a framework and designed to resist compression.
A sport that uses many lines going in the same direction.
Solid materials are more _______________ than tubing.
Tubing uses less _____ than solid materials.
Tubing is ____ than solid materials.
_____ be used to dry and polish windows when washing them
The shape we see in many frame strucutres.
A place where you are safe from bad weather or danger.
A test where one factor at a time is changed
The characteristics of materials.
A bar graph is diagram that shows _______ in bars or columns.
A shape with four corners and the sides are the same length
Structures cellphone companies use to get better signal.