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How do mosquitoes stand on water and can humans stand on water using the same method?

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Presentation on theme: "How do mosquitoes stand on water and can humans stand on water using the same method?"— Presentation transcript:

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2 How do mosquitoes stand on water and can humans stand on water using the same method?

3  I think mosquitoes float on water because they have small pads on their feet  Humans can float on water using the small pads attached to their feet

4  Mosquitoes can stand on water.  Mosquitoes have grooves on their legs  Water “surface tension” helps mosquitoes float  Mosquitoes trap air in the grooves of their legs and use surface tension to float  Each mosquitoes can support 23 times the weight of the mosquito.  The mosquitoes legs create a superhydrophobic (extremely water repelling) effect

5  Duct Tape  Pool of Water  2 cardboard pieces  2 foam pieces  2 wood pieces

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7 1. Go to a pool 2. Take the cardboard and put duct tape around the cardboard and your foot 3. Then slowly get into the water standing 4. See if you float 5. Then take the foam board and take the cardboard and put duct tape around the foam board and your foot 6. Then slowly get in the water standing 7. See if you float 8. Then take the wood cardboard and put the duct tape around the wood cardboard and your foot 9. Then slowly get in to the water standing 10. See if you float

8  Control › Stepping into the water barefoot and seeing if I float › How much weight I put onto the board/water  Variables › Different materials for floating › The way the water moved on the board

9  The water did not push back as much as I thought it would  I felt that I had the best shot with foam feet  Water was not moving and was not a problem

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13 MethodFloat BarefootNo WoodNo FoamNo CardboardNo

14  I found out that my hypothesis about how mosquitoes float was incorrect.  Mosquitoes do not float in water using pads but have grooves in their legs that makes them float  Humans cannot float by using pads made out of cardboard, wood and foam

15  http://news.softpedia.com/news/Why- Can-Mosquitoes-Walk-on-Water- 60326.shtml http://news.softpedia.com/news/Why- Can-Mosquitoes-Walk-on-Water- 60326.shtml  http://en.wikipedia.org/wiki/Mosquito http://en.wikipedia.org/wiki/Mosquito


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