Introduction
Cartesian Driver was introduced by famous scientist named Galileo Galilee.In this experiment we will fill the water in bottle and we will insert pen cap with clay inside at pen cap.We place the cap in middle such a way that it will not sink and float completely.To experience Fun we will squeeze the cap and the cap will sink.
Material Required.
- A Soda Bottle
- A Cap of Ball point Pen
- Modeling clay like sculpy
Procedure.
- Remove the plastic covering(Label) so that you can see experiment in action.
- Fill the water in bottle full
- In Pen Cap add a small size of modeling clay at end(There should be air inside cap).The modeling clay should be pea sized.
- Add the pen cap into the bottle you will notice that some water will come out from the bottle.It should float barely.It should not sink and float completely.
- Now close the bottle with bottle cap.
- Experience a fun.When you press bottle the cap will sink and If you stop pressing it will float up in the middle.Practice more
.
Making a real experiment.
- Use different type of clay
- Use another thing instead of cap.
- Practice more.
- Use larger bottle.
- Use more water.
- Changing the Temperature of Water
Working of Temperature.
The experiment is completely based on density.We know the density=mass/volume .The mass of cap will be low and volume of water will be high so it will fill.But make the mass of cap in such a way that it will remain in middle of bottle.Some times it may not work because of large volume of water,low mass or very high mass of cap.You may try other instead of pen cap.
Glossary
Clay : type of fine soil or rock: a fine-grained material consisting mainly of hydrated aluminum silicates that occurs naturally in soil and sedimentary rock. Use: in making bricks, ceramics, and cement.
Volume :space inside object: the size of a three-dimensional space enclosed within or occupied by an object. Symbol V
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