Procedures: 1. Prepare the materials and place it in four different cups. 2. Mix the sand, pebbles, and gravel. Describe the resulting mixture. 3. Place the mixture in a sieve plate or strainer. Shake it several times, Describe what happens. 4. What is your conclusion after performing the activity? 5. Don't forget to take picture/video while doing this activity which will serve a of the basis of your performance task score.
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1) Pour the mixture in a container having water and stir well. The salt will dissolve in it.
2) Now pass the mixture (aqueous) into another container using a sieve. The sand and the solution will pass through sieve and the pebbles will get separated out.
3) Then pass the salt solution having sand through a filter paper into another container using a funnel with a Filter paper. Thus, the sand will get separated out.
4) Finally take the remaining solution and heat it till all the water vaporises and the salt remains in the container.