🎯 Goal:
Design and build a "self-movable" car powered by a balloon! Blow up a balloon (or balloons) attached to the car and release it to see it move!
🧪 Experiment duration: 45 minutes
📦 Materials:
- balloon(s)
- cardboard
- strings
- wooden sticks / popsicle sticks
- plastic bottles
- straws
- (scissor & tape)
📊 Variables to consider:
- Placement and connection of the balloon to the car body
- How to blow & release the balloon efficiently
- Size, shape, and thickness of the wheels
- Distance between the wheels
- Shape of the body of the car
🔬 STEM concepts to consider:
- Newton's Law of Motion
- Friction
- Energy transfer
- Air resistance
- Speed, distance, and time
⚠️ ️Beware... cardboard may be difficult to cut into the right shape!
Sure?
🎯 目标：
设计并制作一辆由气球驱动的“自走”小车！吹起安装在车上的气球（或多个气球），然后释放它，让它自己前进！
🧪 实验时间：45分钟
📦 材料：
- 气球（一个或多个）
- 硬纸板
- 绳子
- 木棍 / 冰棍棒
- 塑料瓶
- 吸管
- （剪刀和胶带）
📊 需要考虑的变量：
- 气球的放置和与车身连接的位置
- 如何高效地充气并释放气球
- 车轮的大小、形状和厚度
- 轮子之间的距离
- 小车车身的形状
🔬 STEM 相关概念：
- 牛顿运动定律
- 摩擦力
- 能量传递
- 空气阻力
- 速度、距离与时间的关系
⚠️ 注意：硬纸板可能不容易剪裁成理想的形状，请小心操作！