What makes a good structure?
We compared Oobleck and Putty for a building.
When I touched the Oobleck my hand slowly sunk right down to the bottom of the container, when I touched the Putty my hand pressed down through it.
When I squeezed the Oobleck it felt like hard playdoh, when I squeezed the Putty it looked for a way out of my hand and oozed out.
When I poured the Oobleck it looked like rain drops dripping down windows, when I poured the Putty it was moving to the other end of the container and it was moving ten times slower than a snail.
When I punched the Oobleck it did nothing and kind of hurt my hand, when I punched the Putty it just stuck to my hand.
When I pressed the Oobleck into a ball it crumbled, when I pressed the Putty into a ball it did nothing.
and what happened when we spread it out.
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