| feel | to know by touch |
| nervous | restless or tense |
| allowance | something granted |
| postcards | cards mailed without an envelope |
| yawn | expression of tiredness |
| knapsack | a backpack |
| advice | guidance |
| realistic | showing things as they are |
| haze | fog or cloud |
| device | an instrument or tool |
| chemicals | made form changed substances |
| ingredients | parts of a mixture |
| silos | storage towers |
| mechanical | like a machine |
| millennium | one thousand years |