ten little fingers - arvind gupta (4 mb pdf)

Catch a ButterflySOME INTERESTING TOYS1. To make this dynamic toy you will need an oldpostcard, empty matchbox, scissors, pencil and glue.First draw the picture of the girl and the butterfly on apostcard and then cut it.3. Stick one end of the postcardstrip to the matchbox base andthe other end to the match- boxdrawer In tins position the girl’shand will be in an upward positionand the net will be farremoved from the butterfly.2. Fold the picturealong the dotted lines.4. On pullingthe matchboxdrawer outwards,the girlcatches thebutterfly in thenet.Bubble bottle lensREDUCED ENLARGEDTake a 2 ml used injection bottle Do not remove its aluminium cover. With a clean plastic syringe injectsome water into the bottle. Suck the contents with the syringe. This way the bottle will be flushed.Now inject clean water in the bottle until only one air bubble remains Roll this bottle on a newspaper. Ifyou look through the bubble then you will see the newsprint size reduced. The bottle - a bi-convex lens,however, enlarges the size of the newsprint.Pop gun1. Dip a piece of newspaper in water Tear out a piece of thissoggy newspaper and make little round balls or pellets out ofit. These pellets must tightly fit the bore of a thin bamboo orplastic pipe2. Take a 1-cm bore, 30-cmlong plastic pipe or bambooand tightly push a paperpellet on each end.3. Now quickly push one pellettowards the other with a stick.Pop bottle4. You will be surprised to see the end pelletcome out with a loud bang. When you pushthe pellet in, the air between the two pelletsgets compressed and pushes the first pellet tocome out with a bang.Take a mineral waterplastic bottle and tight fit asoggy newspaper pellet inits mouth. On pressing thebottle the pellet will comeout with a loud POP!