Wordly Wise Book 6 Lesson 6 Review Exercise

The Chinese were the first to produce silk. They began __________ silkworms almost 5,000 years ago.

The silk thread is spun and woven into cloth. It is then ready to be made into shirts, dresses, scarves, and other __________.

People with sensitive skin have a special fondness for clothes made of silk. They can __________ its softness, compared to cotton or wool.

Silk, cotton, and wool are natural products. Example of artificial ________ are rayon and nylon.

The silk moth lays up to 500 eggs at a time. They are so ________ that the head of a pin is large in comparison.

The silk farmer may not want to use the eggs right away. In that case, they are stored in a cool place to _________ their development.

Silkworms start out as quite small creatures. They start eating as soon as they ____ and increase their size 70 times in just six weeks.

Silkworms do very little during the growing stages. Their main ________ is eating, which they do until they are ready to burst.

Silkworms have a very limited diet. They eat only mulberry leaves, and they do so _______ during each growth stage.

As it eats, the silkworm gets bigger, but its skin stays the same size. To accommodate these changes, it ______ its skin four times.