材料准备:黑色卡纸,白纸,放大镜,螃蟹和蝴蝶形状打洞机,剪刀。游戏玩法:步骤一:将黑色卡纸,剪成放大镜镜面大小。步骤二:在剪好的黑色卡纸边缘两边相对处用打洞机打出螃蟹与蝴蝶形状。步骤三:将打好洞的黑色卡纸张贴在放大镜上,再将放大镜对准阳光,并在放大镜的对面放一张白纸。步骤四:拉近或缩短放大镜离白纸的距离,会在纸上看 Material preparation: black cardboard, white paper, magnifying glass, crab and butterfly shape drilling machine, scissors. Gameplay: Step one: the black cardboard, cut into a magnifying glass mirror size. Step 2: Cut the edges of the black cardboard opposite the hole with a crab and butterfly shape. Step three: The holes will be stuck in the black cardboard paper on the magnifying glass, then the magnifying glass at the sunshine, and put a piece of white paper opposite the magnifying glass. Step four: zoom in or shorten the distance of the magnifying glass from the white paper, will look on the paper