• 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. Marked by a teacher

    An investigation into the abundance of fresh water black fly larvae, Simuliidae, between pools ...

    4 star(s)

    of weeds and algae and has no protruding rocks as to obstruct the flow of water of the impellor. 13. Hold the impellor and stand above the site you will place it. 14. Place the impellor and stand on the bottom of the stream pointing in the direction of the current and start the stopwatch.

  2. 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.

  1. Factors Affecting Cooling

    This was because the biggest beaker had the most surface area touching the water. Therefore more water molecules could collide and touch the beaker. If molecules lost heat through convection and radiation through the glass then the more molecules touching the glass, the more radiation.

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

    The heat can only be conducted away through direct contact, and this area of the beaker is small. Also the area that heat loss could occur through convection and radiation is small. The surface like the surface for conduction for evaporation is also reduced.

  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 null hypothesis was accepted, that there was no significant relationship between the water content and SDI. This could be because capillary action with rendzina (chalk) soils allows water to be drawn up by plants roots, therefore plants may get sufficient water for growth.

  1. INVESTIGATING HOW TEMPERATURE AFFECTS THE

    For example the type of the beetroot should be the same; if not then this could affect what temperatures the membrane denatures because of the different prior environments of the beetroot. I will make sure that I wipe the test tubes after rinsing them so any excess water is removed.

  2. Osmosis Investigation

    water and gases only - selectively permeable to other molecules - controls what goes in and out of the cell Vacuole - space filled with a fluid called cell sap which helps to provide support Cytoplasm - a watery jelly in which most of the cell's chemical reactions occur Chloroplasts

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