First, we looked at the procedure and saw that the procedure was not specific enough, because of this, we needed to add more detail. We added more detail by specifying how much water we use and how much material we needed.
Next, we chose the materials that we wanted to experiment on. The materials that we could chose were: nappies, cotton, rocks, sand and paper towels. The experiment was about what material can absorb the most water.
We then prepared our experiment. We measured 100ml of water inside a beaker, got a tote tray to prevent spillage, and weighed our material to get 50g worth of material.
After getting the experiment ready, we started. We poured the water on the material and once all of the water was poured, we let the material absorb. Then, we took out the material and put the excess water in a beaker. We measured the excess water. We recorded the results on a sheet and compared them.
By the end of this activity, LS1 should have come up with a good understanding of which material can absorb the most. LS1 should have also had a good understanding of how to be precise.
LI: To determine the absorbency of different materials using experimental materials.
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