| A.a red box is heavier than a white one |
| B.a color has weight in one’s mind |
| C.white paper is lighter than red paper |
| D.you can know the weight of a color by holding it |
| A.Because people can sense the light from colors. |
| B.Because we can smell the colors by our noses. |
| C.Because every color has its sweet smell. |
| D.Because every color gives off light with the same wavelength. |
| A.colors has order in weight. |
| B.colors can change the weight of an object. |
| C.people would stay longer in a room with red windows. |
| D.colors can affect our mood and health. |
| A.book review | B.history textbook |
| C.travel magazine | D.science report. |