<ul><li>What to do?  </li></ul>
<ul><li>What you need? </li></ul><ul><li>The experiment  </li></ul><ul><li>20%water 80%corflour </li></ul><ul><li>We reali...
<ul><li>Cold temperature </li></ul><ul><li>Ambient temperature </li></ul>
<ul><li>When you hit the oobleck  </li></ul><ul><li>it is solid </li></ul><ul><li>When you move slowly  </li></ul><ul><li>...
<ul><li>Cornflour is a polymer composed </li></ul><ul><li>of starch molecules.  </li></ul><ul><li>When the oobleck is soli...
<ul><li>Quicksand is a non newtonian fluid </li></ul><ul><li>It is a dilatant fluid like the oobleck </li></ul><ul><li>Alt...
 
<ul><li>If you struggle you solidify sand all around you and you are trapped,  </li></ul><ul><li>so you have to move slowl...
 
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The oobleck experience

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The oobleck experience

  1. 2. <ul><li>What to do? </li></ul>
  2. 3. <ul><li>What you need? </li></ul><ul><li>The experiment </li></ul><ul><li>20%water 80%corflour </li></ul><ul><li>We realise a non newtonian fluid </li></ul>
  3. 4. <ul><li>Cold temperature </li></ul><ul><li>Ambient temperature </li></ul>
  4. 5. <ul><li>When you hit the oobleck </li></ul><ul><li>it is solid </li></ul><ul><li>When you move slowly </li></ul><ul><li>it is fluid </li></ul>
  5. 6. <ul><li>Cornflour is a polymer composed </li></ul><ul><li>of starch molecules. </li></ul><ul><li>When the oobleck is solid when the oobleck is liquid </li></ul><ul><li>Molecules tangle molecules slide against one another </li></ul>
  6. 7. <ul><li>Quicksand is a non newtonian fluid </li></ul><ul><li>It is a dilatant fluid like the oobleck </li></ul><ul><li>Although sand grains are much larger than molecules of starch, starch molecules are quite large and quicksand may react very much like the oobleck. </li></ul>
  7. 9. <ul><li>If you struggle you solidify sand all around you and you are trapped, </li></ul><ul><li>so you have to move slowly and you need someone to help you to get away. </li></ul><ul><li>In every way, as you body is twice less dense than sand you can not drawn yourself , you will float in quicksand. </li></ul>

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