Question

Using the listed equipment, write a procedure for how you would separate a mixture of sand, salt, and pebbles. You do NOT have to use all the materials.

1. Put the mixture in a plastic ziploc bag.
2. Add water and stir with a glass rod.
3. Use a funnel and filter paper to separate sand.
4. Use a magnet to remove magnetic particles.

Answer 1

To separate sand, salt, and pebbles, begin with sieving, followed by dissolution of salt in water, filtration to separate sand, and evaporation to reclaim salt, ensuring each substance retains its physical properties.

Step-by-step explanation:

To separate a mixture of sand, salt, and pebbles, you can use a combination of mechanical and physical methods of separation. Begin by using a sieve to separate the larger pebbles from the sand and salt mixture. Next, add water to the remaining mixture of sand and salt, and stir with a glass rod to dissolve the salt in water. Use a filtration process to separate the sand from the saltwater solution by pouring it through a funnel lined with filter paper. The sand will remain on the filter paper, and the saltwater solution will pass through. Finally, evaporate the water from the saltwater solution to recover the salt. The salt can then be collected from the container after all the water has evaporated. Throughout this process, the sand, salt, and pebbles keep their physical properties and are not chemically altered.