What are growth of microorganisms?

Microorganisms are tiny creatures that can grow and multiply by making more of themselves, just like how you might build a bigger tower by adding more blocks.

Imagine you have one small block, that's like a microorganism. When it grows, it makes copies of itself, so now there are two blocks. Then those two each make copies, so there are four. And soon, you're building a whole skyscraper from just one little block! That’s how microorganisms grow, by making more and more of themselves.

Microorganisms can multiply in different ways. Sometimes they split into two, like a tiny cell dividing into two smaller cells. Other times, they might grow bigger before splitting, it's like a balloon inflating until it pops into two balloons.

When you leave food out, sometimes it gets soggy or smelly, that’s microorganisms growing on the food! They're like tiny chefs making their own little snacks, and soon there are too many of them for the food to handle.