Which of the following is an example of a restraint?
Trucker hats
Kevlar
Seat belts
A desk chair
Something that is fibrous is made from substances like plants or rocks.
True False
What are the two inventions described in the article?
Seat belts and fibers
Seat belts and kevlar
Kevlar and fibers
Buckles and fibers
What does the kevlar do when it is used in safety vests or helmets?
Make it look really nice
It makes them thinner
Destroy weapons
Change the shape of bullets
What was Stephanie Kwolek's Kevlar substance supposed to look like?
Clear
Milky
Green
Cloudy