Here are all your materials: a cup, toothpicks, raisins, straws, paperclips and soap/bubbles.
Start by building the base of your pyramid.
When the pyramid is built, unbend the paperclip and use it to hold the pyramid so you can dip the pyramid in soap without your hands getting soapy!
After dipping the pyramid in the soap, soap should be clinging to the sides and in the middle of the pyramid. Try blowing a small bubble in the middle of the pyramid like the one pictured here.
After showing your teacher an intact tetrahedron, have some fun and see how big of a middle bubble you can blow!
This exercise was brought to you by the Windows to the Universe team.
Last modified prior to September, 2000 by the Windows Team
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