1. How would you separate a mixture of sand, iron nails, and sea salt? We all know that nails are attracted to magnets. So first, use a magnet to attract the iron nails. We also know that salt dissolves in water, while sand does not. So add water to dissolve the salt and leave out the sand. Now, filter the sand out, and then …Apr 11, 2022 · Yes, it is possible to extract gold from seawater in theory, but it's really not practical to do so. It is estimated that there is, in total, about eight million tons of gold dissolved in the world’s oceans. While this is a lot, the oceans are huge, and the actual concentration of gold in seawater is only about …Nov 10, 2019 · A 2018 report cited more than 2,000 Amazon locations with unregulated mining, she said. Dredge in Madre de Dios river. Natasha Andrade. The definition of “illegal” differs by country, she added. “For example, in Peru, mining in national parks and their surrounding area is forbidden,” she said. “It’s …Separate Salt and Pepper with Static Electricity Introduction: Static electricity is the build-up of electrical charges on the surface of an object or material. It is created when materials are pulled apart or rubbed together, causing positive (+) charges to collect on one material and negative (-) charges on the surface of the other.