what can you do with 50 grams of Gallium?
50 grams is not enough to do anything, really. My son ( 4th grade) saw a Youtube video of someone making a mold with a clay, and then pour the gallium into it.  With 50 grams, you can probably make something like a penny size.  To make the gallium into liquid form, you will need to heat it or mix it with a hot water. It was interesting to see a liquid metal but that was about it. The gallium leaves a stain, similar to pencil lines, but easy to clean. Are we going to buy more? Nah, I don't think so.
Rating: 5 stars