Module 22: How to Make a Balloon Biplane

By the end of this chapter, you will know: How to make a biplane balloon model 22.1: Step-by-step Guide The biplane balloon model is one often requested by the boys at a party. To make one follow these instructions: Step 1 Pump up a balloon leaving about a fingers length deflated. Step 2 Put your finger on the balloon knot and push it inside the balloon. Step 3 With your finger still inside the balloon use your other hand to pinch down and grab the knot. Step 4 ...

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