The little boy was out in the back yard with his chemistryset. He seemed to be driving nails into a board.His father approached and asked, ?hat are you doing with thosenails?The son replied, ?hey?e not nails, Dad. They?e worms. I applysome of my secret formula to these worms and they get as hardas nails.The father said,Make me some of that stuff and I'll buy you anew bicycle. The kid was thrilled and gave his father a smallbottle of the formula. Two days later, sure enough there was anew bicycle outside the house and beside it, a beautiful motorscooter.Thanks for the new bike, Dad, but who the motor scooter for?His father replied,That's for you too,son.It's a present fromyour mother.△chemistry set : 화학실험용품 세트△worm: 벌레△secret formula : 비밀처방△stuff: 물건△sure enough: 과연꼬마녀석은 화학세트를 가지고 뒤뜰에 나와 있었다. 널빤지에 못을박고 있는 것 같았다. 아버지가 다가가서 물었다.『그 못으로 뭘 하는거냐?』『아빠, 이건 못이 아니라 벌레란 말이에요. 내가 특별히 조제한약품이 있는데 그걸 좀 발라주면 못처럼 딱딱해지는 것 있죠.』『너, 그 약 나한테 좀 만들어다오. 내가 새 자전거를 사줄테니.』아버지가 말했다. 그러자 아들은 좋아가지고 작은 병 하나를 아버지에게 건네줬다.이틀후 과연 집 앞에는 새 자전거가 나타났고 그옆엔 미끈한 스쿠터가 보였다.『아빠, 자전거 고마워요. 한데 스쿠터는 누구거죠?』『그것도 네거야. 그건 엄마가 주는 선물이란다.』