• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Environmental sciences Lab-1(Wet Stones Experiment)

Extracts from this document...

Introduction

EVS LAB-1 (Wet stones experiment) By Arjun Sharma EVS LAB-1 Wet stones experiment Aim: To find the reason for some stones being wet on the river beach. Focused aim : To investigate the level of wetness on different rocks & how different colours & sizes effects the wetness level of rocks. Variables: Control variable: Number of stones Dependant variable: Amount of moisture Independent variable: Size & Colour of rocks Apparatus: * Digital measuring machine * Calculator * Thermometer Hypothesis: * Lighter the weight, dryer it is. * Higher the weight, more wet it is. Risk Assessment: * Since condensation level was high in the morning, Stones tend to be wet, Rubber boots are therefore recommended to wear while collection of the stones. * Since current levels were strong in the morning, not too much close contact with the stream while collecting the rocks is recommended. ...read more.

Middle

Dry mass (grams) Moisture content (wet mass-dry mass) Temperature (Celsius) Black 103.90 103.51 0.39 14.1 Yellow 334.89 334.65 0.24 15.2 Green 56.84 56.72 0.12 16.54 Green 90.61 90.4 0.21 15.16 White 234.57 234.17 0.4 14.41 Red 154.32 154.27 0.05 14.97 Blue 211 210.91 0.09 15.93 Green 316.79 316.54 0.25 14.30 Brown 251.45 251.05 0.4 14.75 Green 39.97 39.68 0.29 14.55 Black 129.71 129.56 0.15 15.21 Black 16.88 16.23 0.65 15.8 Purple 27.22 26.97 0.25 16.2 Black 15.45 15.38 0.07 15.83 Green 5 4.31 0.69 15.17 Red 15.73 15.65 0.08 16.5 Black 17.91 17.32 0.59 13.57 Black 32.79 32.45 0.34 15.7 Black 92.35 91.87 0.48 13.71 Red 56.93 56.56 0.37 14.59 Red 172.52 172.23 0.29 14.70 Black 103.51 103.11 0.4 14.71 Red 31.45 31.07 0.38 14.60 Black 81.97 81.6 0.37 13.37 Black 16.56 16.27 0.29 15.16 Relationship between temperature & the dry weight Conclusion: Based on the readings above we can see that ...read more.

Conclusion

However we could have made this experiment more accurate by: * Widening our sample range. * By widening our time scale, for instance if we could have performed the tests at 3 different points in the day(morning, afternoon & evening we may have been able to test for temperature change having an impact on the wetness of the stones) * If we tested the stones with a neutral PH level of water to determine the dryness or wetness and then compared it to the Ph levels of water in the river, then there may be acidity or Alkaline levels of water have an impact of the dryness or wetness. * Collectively it would have been interesting to compare results across all teams to see if location of test had an impact on results or when the results are consistent across all teams & determine the factors that are affecting the readings on different sites. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Group 4 Projects 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 International Baccalaureate Group 4 Projects essays

  1. Personal Project - creating a website to educate people about the history of the ...

    By doing this I will find out if my product meets all of the design specifications set. The questionnaire will also ask for feedback on my website. This feedback could then be used to improve my product. Question Yes No If not so then how could I improve the problem?

  2. Personal project - I have chosen Human Ingenuity as my Area of Interaction because ...

    400 soda straws in his mouth. Unfortunately, I didn't achieve my goal of getting into the world record book, but that doesn't mean that my dreams have been crushed. I will try again eventually and hopefully next time I will succeed.

  1. ITGS Portfolio Assignment #1 Improvement and use of electric cars, and its affect on ...

    people with this disability to step on the road with users of electric cars. Impact of the Issue: This issue impacts the society in a scientific and environmental way, as the development and use of electric cars can result in a more polluted atmosphere.

  2. Research Report Time management strategies among HKU SPACE Community College students".

    Different planning methods In this figure, it showed the percentage of how good students can follow their plans. In the survey, among students who do not have a planning habit, 28% of the students could follow more than 75% of their plans, while 12% of the students could follow 51% to 75% of their plans.

  1. Determine the presence of reducing sugar, protein and starch in the food products by ...

    Unfortunately, we did not have sucrose and lipid which meant we could not use the HCl/Benedict test. Results for the each test are represented in the following table, Table 1: § Table 1 – Pretesting results N/A – not applicable Compounds Iodine test Biuret Benedict test HCl/Benedict test control no

  2. Research Project. Social networks: How they influenced business and employment

    This is also helpful in operating trade unions. Videoconferencing and Instant Messaging:-Since videoconferencing is cheaper than travel businesses use it to communicate. This way a formal meeting environment attained while still keeping the costs low. Many companies that depend mainly on teamwork and rely on real-time data for their business

  1. Designing a series of modern fashion accessories design collection with the theme of combining ...

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1. Appendix _____________________________________________________________________________ 12 1. Bibliography . . . . . .

  2. Social Science Final Project- How have the events and issues of the 60s impacted ...

    The pill gave them the ability to continue their education after high school and become established in their career before having children. This opened up the flood gate for women getting the required education to be competitive in fields that men normally dominated.

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