Ok kiddo, have you ever gone to the beach and found a rock that looks like it has a fossil in it, but it's actually just a rock that looks like a fossil? That's called a pseudofossil.
It's like when you pretend to be a superhero by wearing a cape and a mask. You may look like a superhero, but you're not really one. In the same way, pseudofossils look like real fossils, but they're not.
Pseudofossils can form when minerals, like quartz or calcite, grow in patterns that look like the fossilized remains of plants or animals. Or they can form when rocks are eroded by wind or water, creating shapes that look like fossils.
So remember, just because you found something that looks like a fossil doesn't mean it's a real one. Sometimes it's a pseudofossil, just pretending to be one!