How do you separate aluminum powder and salt?

Aluminum powder and salt can be separated using the following methods:

1. Gravity separation: Aluminum powder has a lower density than salt, so it will float on top when mixed together. This allows you to pour off the aluminum powder.

2. Magnetic separation: Aluminum is a non-magnetic metal, while salt is not. This means that you can use a magnet to separate the two materials.

3. Chemical separation: Aluminum powder can be dissolved in a strong acid, while salt will remain undissolved. This allows you to separate the two materials by filtering the solution.