It is not enough to describe some objects by their location. We may also need to know its direction. For example, a wind blows a storm over your school. Where is that storm coming from? Where is it going? How can we describe a direction? The most common way is by using a compass. A compass is a device with a floating needle (Figure 2.1). The needle is a small magnet. The needle aligns itself with the Earth's magnetic field. The compass needle always points to magnetic north. If you have a compass and you find north. You can then know any other direction. See the directions, such as east, south, west, etc., on a compass rose. The Earth has two poles. It has a magnetic north pole. It also has a geographic north pole. These two poles are close to each other but not the exact same place.

Question: "How can we tell where east, west, and south are with a compass?"

Response: "east is left"

A: no

After his cousin Joe dies , Layne Vassimer and his girlfriend Macy , along with their friends Stephen , Maurice , Iris and Katrina , decide to clean up Joe's house with the intention of selling it . When they see it for the first time , they discover the house completely covered in plates of iron armor . The group also finds crop circles in the nearby cornfield . When Iris , one of their friends , suddenly disappears they realize something is really wrong . During a blackout , the house is attacked by aliens , who had previously killed Joe and abducted Iris . The group figures out the aliens are allergic to iron , Joe had covered the house in it to keep them out . They attempt to fight the aliens off , but the house is eventually blown up with Layne , Macy , and Katrina the only survivors . In the end , they drive off , listening to the radio . They hear a news report stating that the blackout they experienced affects five western states and parts of Canada . They also hear that people everywhere are being attacked by '' strange creatures . ''

Question: "The aliens, responsible for killing Joe and abducting Iris, are allergic to what?"

Response: "Iron"

A: yes

Johnnie had a set of small volumes of English verse, extensively annotated by his own hand, which Stoddard had brought to her early in their acquaintance, leaving it with her more as a gift than as a loan. She kept these little books after all the others had gone back. She had read and reread them--cullings from Chaucer, from Spenser, from the Elizabethan lyrists, the border balladry, fierce, tender, oh, so human--till she knew pages of them by heart, and their vocabulary influenced her own, their imagery tinged all her leisure thoughts. It seemed to her, whenever she debated returning them, that she could not bear it. She would get them out and sit with one of them open in her hands, not reading, but staring at the pages with unseeing eyes, passing her fingers over it, as one strokes a beloved hand, or turning through each book only to find the pencilled words in the margins. She would be giving up part of herself when she took these back. Yet it had to be done, and one miserable morning she made them all into a neat package, intending to carry them to the mill and place them on Stoddard's desk thus early, when nobody would be in the office. Then the children came in; Deanie was half sick; and in the distress of getting the ailing child comfortably into her own bed, Johnnie forgot the books. Taking them in at noon, she met Stoddard himself.

Question: "Which of the books loaned by Stoddard did Johnnie keep above all of the loaned books?"

Response: "Small volumes of English verse"

A:
yes