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Facts For Kids About Bacteria


Did you know that bacteria are everywhere? Even in your house, there are millions of them. And the scary thing is that they can sometimes be dangerous. But don’t worry, there are ways to keep them under control. This article is about everything you want to know about bacteria, what they are and how they affect us.

  • Bacteria are important because they keep us safe from diseases by killing harmful germs and releasing antibiotics. This is not only good for people but also for animals.
  • The most common diseases that are spread by bacteria are food poisoning, the flu, colds, ear infections, strep throat, pneumonia, and urinary tract infections.
  • These illnesses can be deadly if they are not treated with antibiotics. The cells inside every animal’s body need good bacteria to fight off any harmful germs or viruses that come in contact with their body. Unfortunately, sometimes these “good” bacteria get killed before they have a chance to fight off all the germs. This is when someone comes down with an illness.
  • Bacteria are actually living microscopic cells that grow in warm humid places. They are everywhere on Earth except for in outer space . Scientists have found bacteria in the ocean, deep underground and even on the moon. It turns out that there are more bacteria on earth than there are stars in the universe.
  • Bacteria are smaller than human cells but they are not invisible because they are kind of light purple or dark red. Most bacteria are either light or dark purple looking. They look like small dot with a little line running through them. Bacteria come in all shapes and sizes, but most of them look like tiny bubbles with hairlike cells hanging off of them.
  • Did You Know? – The colors of bacteria can actually be changed by the chemicals they use to grow. Sometimes the chemicals change the color of bacteria from dark purple to light purple. Bacteria can make chemicals like indole and tryptophan . These chemicals make their cells light purple. If you look closely, you can see them using photosynthesis.
  • Bacteria do not have a well-defined shape, but most cells are round and formed like bubbles. For example: hair cells, bones and teeth all come from bacterial cells that build them one piece at a time over millions of years (no one knows how many millions of years though). Only bacteria can do that.
  • Bacteria are an important part of some animals’ diets . Animals like to eat them because they are full of useful nutrition. Bacteria can be helpful to animals by protecting them from diseases and some animals even produce the chemicals that help keep them healthy.
  • Did You Know? – Some bacteria attack only humans, others only attack dogs or cats or even fish or birds. Some bacteria can even come back from the dead! Even one bacterium is resistant to radiation , so if it gets on your skin, you will get sick but it will not get killed by radiation.