biodegradable hydrogel soil

[solarstar]

how do you measure the amount of water in soil?






Moderator note: SB project: https://www.sciencebuddies.org/science- ... -hydrogels

[ameyab19]

Hi,

A good way to measure the amount of water is to weigh the pot after adding the soil, hydrogel, and water (initial weight). Then, you could weigh the pot daily as the soil dries out.

To determine the amount of water lost, would use a formula like this: initial weight - weight after dried = water lost.

Hope your project goes well!

- AB

[amyCC]

To add to the information AB gave you, looking at the procedure specifically, steps 5 and 6 of the testing section outline, step by step, how you will weigh and monitor the samples in this project.

Get an initial weight for each prepared pot.
Using the scale, weigh each pot. Record the weight for each pot in a data table, like Table 3, in the "Day 0" column.
The pots with hydrogel labels contain soil, hydrogel, and water and weigh more than the control pots, which have only soil and water.
Weigh each prepared pot daily for ten to fourteen days. Record the weights in your data table. Also, write down any observations you have.

Amy
Science Buddies