How Do You Make A Fossil Sponge?
Fossils are the hardened, mineralized representations of the remains of living organisms from the distant past. Fossils can be formed in several ways, one of which is known as permineralization. In permineralization, water gradually dissolves the organic material left behind by a deceased plant or animal, washing it away. Other minerals then fill in the resulting holes. These minerals harden and form crystals, taking the place of structures such as bones. Over time, these crystals replace the entire organism and become a fossil. This process takes nature hundreds of years, but by following the directions below you can use a bath sponge to mimic fossilization in one of two ways—by casting your “fossil” in wax or by forming salt crystals. Place the sponge on a flat surface. Use the permanent marker to draw a fossil shape onto the sponge. Make a claw, a wing, and thigh bone or a shell.If you’re unsure about your drawing ability, you can use a stencil. Cut out the sponge fossil. Tear off
