would a screen be useful for separating a mixture of gravel and diatomaceous-earth powder?

It is a good start. However, some fine gravel will get through the screen with the D.E., and some powder will stick to the gravel above the screen, especially if the gravel is wet.

i think it

You should say yes or no and then explain why it is a yes or no but this helps a little thanks for the help iam not b eing sarcastic when i said thanks for the help well keep helping it is good for people to know that you are helping in a certain way

Drwls feed back is good why would they just make people say the answer in the feedback they have to tell the answer

thanks you guys so much 4 all your help.This helped so much on a school project i actually got an A+!!!!!!!

So I had this for HW and what I think is right is that the screen would work. But only the gravel will stay on the screen. The powder will pass through.

Yes, a screen would be useful for separating a mixture of gravel and diatomaceous earth powder. A screen, also known as a sieve, is a device with uniform-sized holes or openings that allow smaller particles to pass through, while retaining larger particles. By using a screen, you can separate the gravel, which is of a larger particle size, from the diatomaceous earth powder, which is of a smaller particle size.

To separate the mixture using a screen, you can follow these steps:

1. Select a screen with an appropriate mesh size. The mesh size should be small enough to retain the diatomaceous earth powder but large enough to allow the gravel to pass through.
2. Place the screen over a container or a surface that will catch the separated materials.
3. Pour the mixture of gravel and diatomaceous earth powder onto the screen.
4. Gently shake the screen or use your hands to agitate the mixture on the screen. The smaller particles of diatomaceous earth powder will pass through the holes of the screen, leaving the larger gravel particles on top.
5. Once most of the diatomaceous earth powder has passed through the screen, carefully remove the separated materials from the screen. You can collect the gravel that remained on the screen and the diatomaceous earth powder that passed through separately.

By following these steps, you can effectively separate the mixture of gravel and diatomaceous earth powder using a screen.