Collect soil from Various Locations Observe the difference
in their texture
Answers
Take the collected roadside soil and garden soil into two different beakers containing water.
Mix the test tubes with the soil solution slowly
Now into a clean and dried two test-tube, arrange a funnel spread covered with a filter paper.
Now gently pour the soil solutions into the test tubes separately.
Let the water to completely filter off from the filter paper.
Take the collected filtrates (soil) into the two different test tubes for testing the pH values.
With the help of a dropper, add a few drops of universal indicator solution to both the test tubes.
Observe the changes.
Observation
When the universal pH indicator is added to the test tube containing the soil solution, the colour changes. These colour changes can be tracked using the pH colour chart. Roadside soil has a pH level of 7 while garden soil has a pH level of 6. Most crops grow between pH levels of 6.0 and 7.0.
To study the texture of Soil Samples
Collect 50 gm of any soil sample in a beaker.
Take a clean and moisture-free measuring cylinder and the collected soil sample into it.
Now pour little water into the same measuring cylinder and shake well.
Keep the apparatus undisturbed for a few minuted and wait for the particles to settle down.
After a while, observe the changes in the measuring cylinder.
The soil particles in the measuring cylinder will start to settle down in layers.
Record the thickness of these layers.
Answer:
Aim
To study soil samples from two different sites and analyse their properties such as texture, moisture content, water-retaining capacity and pH. Also, the study aims to correlate the plants found in such soil.
Necessary Materials & Apparatus
For this experiment, soil collected from the roadside and garden are to be used. Apart from the soil samples, other required materials are:
Tile.
Beaker.
Funnel.
Burner.
Dropper.
Crucibles
Petri dish.
Glass rods.
Test tubes.
Wire gauze.
Filter Paper.
Distilled water.
Mortar and Pestle.
pH paper booklet.
Measuring cylinder.
Universal pH indicator solution.
Tin Box with a perforated bottom.
Weighing scale or Electronic balance.
Procedure
The following are the steps taken to prepare the soil samples for experiments to analyse various properties.
To study the pH of the Soil Samples
Take the collected roadside soil and garden soil into two different beakers containing water.
Mix the test tubes with the soil solution slowly
Now into a clean and dried two test-tube, arrange a funnel spread covered with a filter paper.
Now gently pour the soil solutions into the test tubes separately.
Let the water to completely filter off from the filter paper.
Take the collected filtrates (soil) into the two different test tubes for testing the pH values.
With the help of a dropper, add a few drops of universal indicator solution to both the test tubes.
Observe the changes.
Observation
When the universal pH indicator is added to the test tube containing the soil solution, the colour changes. These colour changes can be tracked using the pH colour chart. Roadside soil has a pH level of 7 while garden soil has a pH level of 6. Most crops grow between pH levels of 6.0 and 7.0.
To study the texture of Soil Samples
Collect 50 gm of any soil sample in a beaker.
Take a clean and moisture-free measuring cylinder and the collected soil sample into it.
Now pour little water into the same measuring cylinder and shake well.
Keep the apparatus undisturbed for a few minuted and wait for the particles to settle down.
After a while, observe the changes in the measuring cylinder.
The soil particles in the measuring cylinder will start to settle down in layers.
Record the thickness of these layers.
Observation
Using a soil textural triangle, draw the corresponding percentage of the soil components (silt, clay & sand). The resultant lines which, intersect indicate the type of soil.
Explanation:
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