Closure: Earlier in the chapter we learned about how mirrors are used to reflect light rays, today we learned how light can also be refracted across an object.
(we; learned; about how mirrors are used to reflect light rays) (mirrors; are used; to reflect light rays) (mirrors; to reflect; light rays) (we; learned; how light can also be refracted across an object; T:Earlier in the chapter; T:today) Context(we learned,List([99, 109))):(light; can also be refracted; L:across an object)
we learned,List([99, 109))
we mirrors mirrors we light
learned are used to reflect learned can also be refracted
about how mirrors are used to reflect light rays
to reflect light rays
light rays
how light can also be refracted across an object T:Earlier in the chapter T:today
L:across an object