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To find out if the height depends on the size of the crater by dropping a marble over different heights.

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Introduction

Karthik Manthena   11 Palmer

Aim: To find out if the height depends on the size of the crater by dropping a marble over different heights.

Apparatus:

Stand

Sand

Tray

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Marble

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Prediction

Prediction

Prediction

I predict that, in this experiment, the higher that I drop the marble from a height the greater the size of the crater. The scientific knowledge which supports this is that the marble’s Gravitational Potential Energy and so when it is higher up it gains

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Middle

Fair Tests & Variables

To make this experiment a fair test I will only change one thing as this is the only important variable.I will only change the height of which I will be dropping the marble, for example dropping the marble at multiples of ten. However the size of the marble will have to stay the same as it will affect the size of the crater. The size of the tray in which the sand is placed is also important as it varies on how much sand is placed into the sand tray and how wide the tray is. The sand

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Conclusion

There were a couple of anomalous results in my graph. This could be due to the fact that I did not measure the size of the crater carefully enough or I did not pay enough attention when dropping the marble from different heights. In order to resolve this I would need to repeat the experiment to obtain a wider range of results.

Despite all of these factors we are able to make some kind of conclusions from the experiment. It was useful to see how different factors affect the size of craters.

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