using a screen
10 Green marbles, 13 Blue marbles.
24 red marbles
35
There are at least 11 green marbles in the bag.
Let X = the number of green marbles. X+3 = the number of blue marbles. X + (X+3) = 23 2X + 3 = 23 2X = 20 X = 10 or the number of green marbles.
For the nails, you can use a magnet. You can separate the marbles and corks by putting it in water, wood floats and marbles don't.
Separate them by colour
No it is not a solution.
no
One possible way to separate wooden marbles from glass marbles is by using a magnetic field. Since wooden marbles are typically not magnetic, while glass marbles are also not magnetic, one can use a strong magnet to attract and separate the wooden marbles from the glass marbles. The magnet will attract the wooden marbles while the glass marbles will remain unaffected and can be easily sorted out.
Because you can separate seashells and marbles with your hands and you can't with copper sulfate
To separate Nails from flour you would get a magnet and put the magent above the bowl of nails and flour. The nails will then be attracted to the magnet and then you will have the nails separated from the flour.
Use a magnet.
Yes, a cork will often float on the surface of water, depending on the cork's density. But a marble will sink in water because of its weight. It will not float on the surface.
Visual - the clue is in the question! Or use a magnet, assuming the steel marbles are not of a non-magnetic grade of stainless-steel.
The two ways you can separate nails from sand is by digging it up and raking it :)
I don't