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材料:透明的方形玻璃瓶、火柴、软木塞和放大镜。制作方法:1.将软木塞插上一根火柴(图1)。2.塞在方形瓶的瓶口。注意把软木塞轻轻地插进,以免瓶子破裂(图2)。3.将瓶子倾斜,用放大镜把太阳的光聚焦点照在火柴棒的顶端硝药(图3)。4.过一会儿,火柴棒顶端的硝药燃烧起来,软木塞飞射出瓶口(图4)。
Material: Transparent square glass, matches, cork and magnifying glass. How to make: 1. Insert a cork plug (Figure 1). 2. Plug the bottle in the square bottle. Be careful to insert the cork gently to prevent the bottle from rupturing (Figure 2). 3. Tilt the bottle and use a magnifying glass to spotlight the sun’s light onto the top of the match sticks (Figure 3). 4. After a while, the top of the match stick burns up and the cork flies out of the bottle (Figure 4).