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如何制作潜望镜来观察角落的物体

如何制作潜望镜来观察角落的物体 — Practical science experiments guides from the Kids lane. HowTo: Family Edition: family how-tos that actually help.

反射的科学原理
所需材料
制作步骤
进一步探索

How to make a rocket from a plastic bottle · How to make a wave in a bottle · How to make a balloon powered car · How to make a hovercraft from a balloon and CD · 如何制作一本你自己的定制画册 · 如何整理您的手工用品 · 如何画出你所见的一切