A simple illustration of a clear plastic cup containing layers of brown gravel, black charcoal, and tan sand for a DIY filter.

Create a simple illustration of a diy filter for kids. Use a clear plastic cup and three layers of media. Gravel on top, granulated charcoal in the middle, and sand at the bottom. The size of the charcoal should be slightly smaller than the gravel. Show the layers stacked directly on top of each other with no space in between. Make it as simple as possible. Give the layers texture to clearly show what the materials are. Do not include any water in this picture. See more