• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11

This investigation is about what factors affect the speed of boiling water-cooling to room temperature.

Extracts from this document...

Introduction

This investigation is about what factors affect the speed of boiling water-cooling to room temperature. Factors which may affect how quickly hot water cools down are- * Material container is made from * The volume of hot water * Using a lid * Starting temperature of water. Aim of investigation The aim of this investigation is to find out how the type of container affects the way hot water cools down to room temperature. I am going to be using 4 types of container- copper, plastic, glass, and polystyrene. Prediction and Scientific Theory I predict that the polystyrene cup will keep the most heat because it is the best insulator. Polystyrene is a good insulator because it contains particles of air making it a bad conductor of heat. I predict that the copper cup will keep the least heat because it is a good conductor of heat. Fair Test To make the experiment a fair test I will- * Use the same amount of water. * Make sure the starting temperature is the same. ...read more.

Middle

Evaluation I think my investigation was successful; it produced clear results in keeping with my prediction and scientific theory. There were no surprising results. Although it was hard to get the starting temperature the same it was eventually achieved. Making my results clearer and easier to draw conclusions from. The investigation was successful but I still feel it could have been improved to make my results more accurate. The measuring of the water was done quickly using a glass beaker to prevent the water cooling before I started my experiment the experiment would have been more accurate if I had measured the water using a measuring cylinder. Other factors that could be investigated are: * Surface area. * Insulation. * Stirring. * The use of a lid. Aim of Investigation The aim of this investigation is to find out how the Surface area of the opening of the container affects the way hot water cools down to room temperature. I am going to use two glass beakers one with the capacity to hold 200mls of water, with a diameter of 7.5 cm and a surface area of 44.179 cm. ...read more.

Conclusion

These results show us that the water-cooled fastest in the beaker with the larger capacity, diameter and surface area. This is because a lot more hot air was able to escape. The beaker with the smaller capacity, diameter and surface area retained the more heat because less hot air was able to escape. Evaluation I think this investigation was quite successful although not as successful as the first experiment. The results this experiment produced were less clear because the starting temperatures were very different. It was still possible draw conclusions from the results and these results were in keeping with my prediction and scientific theory. This investigation was successful but as I did with the first experiment I think improvements could have been made to make my results clearer and more accurate. As in the first experiment the measuring of the water was done quickly using a glass beaker to prevent the water-cooling before I started my experiment. The experiment would have been more accurate if I had measured the water using a measuring cylinder. I was unable to get the starting temperatures of the water the same. If I had been successful the results would be clearer and easier to draw conclusions from. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Green Plants as Organisms section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Green Plants as Organisms essays

  1. Photosynthesis Investigation

    The site of photosynthesis is in the cells inside the leaf. The diagram below show a view of the sort of cell that caries out photosynthesis in the leaf. The living parts of the cell, the cytoplasm and nucleus, are surrounded by a non-living cell wall of cellulose: the cell wall keeps the cell in shape.

  2. An investigation to investigate the effect of the diameter on the cooling rate of ...

    This is because as the diameter of the beaker decreases the surface is therefore the only part of the object in contact with the environment. The majority of the heat will remain internal within an object whose surface is very small.

  1. INVESTIGATING HOW TEMPERATURE AFFECTS THE

    The biggest difference in absorbency was between 20 and 30C from 0.10 to 0.17 and 50C to 60C, from 0.23 to 0.30. From 0ºC to 20ºC, there's a slight increase in the average percentage of absorbeny. This is because when water freezes, it expands and this makes the cell membrane burst.

  2. Photosynthesis Investigation

    Different pieces of pondweed have different masses and length. Each time we change the light intensity I will use the same piece of pondweed so the length and mass is always the same. If the pondweed were longer it would have more palisade cells and so more chloroplasts and if

  1. Osmosis Investigation

    On the other hand, the potato cubes dipped into the 0.6M solution were lighter after that because the solution has a lower concentration of water than the potato cubes so the water diffuse from the potato cubes to the solution so they are lighter than before.

  2. Broad Bean Investigation.

    The problems if it occurs can really spoil my investigation but some of these problems can be rectified and made sure that they do not happen during the investigation. Ways of resolving these problems 1. & 2. The problem with uneven amounts of light given to the beaker could be

  1. Investigating the abiotic factors that affect the size of Ivy leaves in shaded and ...

    Insert plunger just inside barrel of device and gently shake mixture for 30 seconds. Press the plunger down slowly until it touches the mixture, place on the cap and screw down slowly until you see the solution filter into plunger.

  2. An Investigation into Species Diversity with distance along a Pingo.

    The high SDI could also be accounted for in zone 9 because it is relatively sheltered from wind, resulting in less soil erosion (little soil is bare and therefore little soil is exposed and so soil quality is better)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work