Water Experiments

 

Title:DLO	Water Tension DLO
Question	How much tension can multiple water droplets hold?
Research	Test water tension on a 20c coin
Hypothesis	Can the coin hold 8 drops on the heads side?
Experiment Equipment method	We got given a straw, A flask of 20ml of water and a 20c coin.  We used the straw to collect the water by sealing the pressure on the top of the straw and slowly releasing the pressure of the water to make a water droplet fall on the coin.
Collect Data	7 drops on heads side, 18 on tails side.
Analyze	We could fit 18 droplets on the tails of the coin.
Conclusion	We think that this was the limit because we couldn’t manage to fit anymore droplets on the coin. There was another group that could only get to the same amount.
Report	We had a hypothesis and that was how many droplets of water could fit on a 20c coin. We estimated 5 droplets of water on the heads side of a 20 cent coin, the result we got was 7 drops of water on the coin before the surface tension burst and the water flowed off the coin!