Materials Chemistry Review

Long strands of substances are known as

• crystals

• fibers

• molecules

• atoms

Cotton comes from a 'boll' which is

• an enlarged part of the root

• the long strands of the stem

• a protective case around the seeds of the plant

• the flower petals of the plant

A textile that is made from the fibers of the flax plant is

• cotton

• wool

• silk

• linen

Which statement is true about comparing linen to cotton fibers?

• linen dries faster than cotton

• linen is softer than cotton

• its cellulose fibers are shorter than cotton

• linen's cellulose fibers are wrapped looser than cotton

Where do linen fibers come from?

• the outer layers of the plant's stem

• the inner layers of the root

• the hair of a special breed of sheep

• the top of the flower the linen plan

Textiles are

• types of cloth or woven fabrics

• types of minerals

• types of solutions

• types of rocks

Large molecules called _____ are made of many smaller repeating molecules chemically bonded together.known as

• monomers

• polymers

• hydrogen bonds

• sulfide bonds

The coat of wool from an animal such as sheep or goats is known as the

• boll

• root

• fleece

• leather

What waterproof molecule are found in the cuticle of the wool fiber?

• wax

• cellulose

• glycogen

• keratin

What part of the wool fiber has a high sulfur content, which makes it fire resistant?

• lignin

• cuticle

• matrix

• scale