Write an activity on the topic :-
◍ To find the percolation rate of water in different soils. !
Mention these in the activity :-
★ Aim of the activity.
★ Materials required in the activity.
★ Procedure
★ Observation
★ Conclusion
★ Precaution
Answers
FOR DOING THE ACTIVITY FIRST WE NEED TO KNOW THAT , WHAT IS PERCOLATION RATE ?
Percolation rate: The amount of water that seeps through a soil sample in a given time is called its percolation rate .
_________________________
To show the percolation rate of water in different soils or for the given soil sample.
soil sample , stop watch , 100ml of water(amount can vary)
• Take the soil sample in a beaker and add 100ml of water.
• As the water seeps down from the soil sample note the time taken.
Note the time till the water seeps down in the given soil sample.
(Reason : Due to water holding capacity between the intermolecular space, the water takes time to seep down )
Confused ? Never Mind .. let's take an example
Question - a certain sample took 30 minutes for 300 mL to percolate. Find its percolation rate .
= 10 ml / min
• The calculation can be done according to the noted reading confirms the percolation rate of the soil sample.
• The unit of percolation rate will be in ml/min.
• Sandy soil has highest rate of percolation of water and least water holding capacity.
• Clayey soil has least percolation rate and highest water holding capacity.
• Loamy soil has the percolation rate in between Sandy soil and Clayey soil with right amount of water holding capacity.
Percolation rate: The amount of water that seeps through a soil sample in a given time is called its percolation rate .
_________________________
★ Aim of the activity.
To show the percolation rate of water in different soils or for the given soil sample
★ Materials required in the activity.
soil sample , stop watch , 100ml of water(amount can vary)
★ Procedure
• Take the soil sample in a beaker and add 100ml of water.
• As the water seeps down from the soil sample note the time taken.
★ Observation
Note the time till the water seeps down in the given soil sample.
(Reason : Due to water holding capacity between the intermolecular space, the water takes time to seep down )
Percolation rate= Amount of water(ml)
Percolationtime(min)
Confused ? Never Mind .. let's take an example
Question - a certain sample took 30 minutes for 300 mL to percolate. Find its percolation rate .
percolation rate 300ml
30minute
=10ml/minute
• The calculation can be done according to the noted reading confirms the percolation rate of the soil sample.
• The unit of percolation rate will be in ml/min.
Result
• Sandy soil-has highest rate of percolation of water and least water holding capacity.
• Clayey soil- has least percolation rate and highest water holding capacity.
• Loamy soil- has the percolation rate in between Sandy soil and Clayey soil with right amount of water holding capacity.