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WATER

WATER. Water is absorbed by some materials. Water beads up on some material. Q: Why does water make a sponge expand?. Q: Does squeezing the dropper gently make the water fall more slowly?. Q: Would water bead up more easily (form better domes) on foil that is not wrinkled?.

karyn-sheppard
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WATER

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  1. WATER

  2. Water is absorbed by some materials.

  3. Water beads up on some material.

  4. Q: Why does water make a sponge expand?

  5. Q: Does squeezing the dropper gently make the water fall more slowly?

  6. Q: Would water bead up more easily (form better domes) on foil that is not wrinkled?

  7. Water forms a dome on a flat surface.

  8. Surface tension makes water form a sphere or a dome.

  9. Soap added to water reduces its surface tension.

  10. Q: Would the surface tension be the same on a dime?

  11. Q: What else could we add to water to change its surface tension?

  12. Water flows DOWN a slope.

  13. Bigger domes of water move down a slope faster.

  14. Water flows faster down a steeper slope.

  15. Q: How does water get clean?

  16. Q: What stopped some of the water drops from flowing down the slopes?

  17. Q: Can we speed up the flow by using another surface, like glass?

  18. Water expands when heated.

  19. Water contracts when cooled.

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