Engineering Neurotypical 15 Minutes Easy

Can We Build a Tower That Won't Fall in the Wind?

Work as a team to stack cups and test them against the powerful gust of a classroom fan!

Required Household Materials

  • ✓ 30 disposable plastic cups
  • ✓ A portable fan or a stiff cardboard sheet (to wave as wind)
  • ✓ A flat desk or floor space
  • ✓ A measuring tape

🎯 Quick Overview

  • Goal: We will work as a team to build a cup tower and discover how a wide base provides wind resistance.
  • The Brain Hook: Can We Build a Tower That Won't Fall in the Wind?
  • Time & Tools: 15 Minutes | 30 plastic cups, a fan or cardboard wind-maker.

    • 🔬 The Science (In Plain English)

    Tall towers have a point called the "center of gravity," which is the average balance point of their mass. If you build a narrow tower, its center of gravity is high up, making it easy to tip over. A wide, pyramid-like base spreads the tower's weight over a larger area, lowering its center of gravity. This makes it incredibly stable against sideways forces like wind!

    💡 The Profile-Matched Analogy

    Imagine standing on a moving train. If you stand with your feet glued tightly together, you will stumble and fall on the first bump. But if you stand with your feet spread wide apart, you are stable and can balance easily—the tower's wide base is just like spreading its feet!

    🛠️ 5-Minute Action Steps

  • Split into builder roles (e.g., Cup Carrier, Base Layer, Alignment Checker).
  • Attempt to build a tower that is 4 cups high in a straight vertical line. Blow on it or wave cardboard to see how easily it collapses.
  • Now, build a pyramid tower with a wide base of 4 cups, then 3, then 2, then 1 on top.
  • Turn on the fan or wave the cardboard sheet forcefully. Watch the pyramid tower resist the wind easily!

    • 🗣️ Parent Script (Word-for-Word)

  • "Let's stack these cups in a straight vertical tower. Wave this card. Did it fall?"
  • [Pause 3 seconds]
  • "Now let's build a wide pyramid base. Wave the card as hard as you can now!"
  • "Why does having a wider bottom stop the wind from blowing the cups over?"

    • 🛡️ Safety & Supervision Note

    Safe classroom group activity; ensure the fan is kept at a safe distance and cords are secured to prevent tripping.