Title: The Absorbency of Different Type of Soil
Introduction and Aim of Project:
Introduction: We have to prevent the damaging effects of a flash flood in a limited amount of time. We are to build an artificial flood bank to control the flooding. But we only have enough time to build the levee for one section, either section A, B or C.
Aim of project:
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The difference in the different type of soil is the amount of water the soil can absorb.
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The aim of the project is to find out which type of soilcan absorb the most amount of water and which levee need to build on which section.
Experimental Design and Procedure:
Plan of Experimental Design
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Factors: Type of soil and the amount of water
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Hypothesis for Task 1: Sand can absorb more water than clay or top soil
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Hypothesis for Task 2: The levee should be built in Section B
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Question: Will a high tide impact the amount of water soil can absorb?
Procedures:
1.
Measure 200ml of water and pour it above the 3 different type of soil
2.
Time 1 minute
3.
Remove the beaker from below the bottle immediately after 1 minute
4.
Measure the amount of water in the beaker
5.
Repeat the procedures for the other soils for trial
6.
Do the procedures for the soil again
Results:
Task 1
Type of soil
|
Amount of water collected in the beaker
|
Sand
|
73
|
Top Soil
|
77
|
Clay
|
83
|
Task 2
Type of soil
|
Amount of water collected in the beaker
|
Sand
|
59
|
Top Soil
|
61
|
Clay
|
65
|
Analysis and Discussion of Results:
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The results prove that our hypothesis is correct. Sand is the best absorbent material as compared to top soil and clay.
Conclusion:
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Sand is the most absorbency material among the three materials.
Reason: Sand has the least amount of water collected in the beaker although the same amount of water has been poured in the 3 different beakers. This shows that sand absorbs more water than top soil or clay. Hence, sand is the most absorbency material among the three materials.
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Section B needs the levee more than Section A or C.
Reason: In section B, there is only clay there to absorb the flood. Compared to top soil or sand, clay is the poorer absorbent material so Section B needs the levee more than Section A or C.
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We can do more trials to prevent human error
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Instead of measuring the amount of water every 2 minutes, we can measure the time taken for the water to reach 100ml
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We can also try to use garden soil
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The less the amount of top soil in the beaker, the more the amount of water will pass through
Reference:
Duty List and Acknowledgement:
Group Members: Koh Wern Ying, Toh Jun Rong, Ding Mo Han, Valencia Wan and Wang Zi Qiu
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